Your guide to enterprise phishing protection in 2026: what each anti-phishing tool focuses on, the layer it protects, and where phishing still slips through.
Your guide to enterprise phishing protection in 2026: what each anti-phishing tool focuses on, the layer it protects, and where phishing still slips through.
The short answer: Almost every phishing attack ends up in your employee's browser, whether the link arrived by email, text message, LinkedIn or a search ad. That makes browser-based phishing detection the one control that sees phishing across every delivery channel. Email security, phishing-resistant MFA, training and EDR still matter for the attacks that never touch the browser: BEC emails with no link, phone-only scams, and attachments opened in a desktop email client like Outlook. The best anti-phishing tools in 2026 are Push Security, Proofpoint, Abnormal AI, Mimecast, Microsoft Defender for Office 365, Varonis Interceptor, KnowBe4 and CrowdStrike.
Most organizations already pay for some form of anti-phishing software. Email security filters the inbox, training teaches people what to look for, and EDR catches what runs on a device. All three were built around the same assumption: that phishing arrives by email.
That assumption doesn't hold anymore. Employees get phishing links in LinkedIn messages, Teams chats, text messages and search results, and 1 in 2 payloads Push intercepts are sent over channels like search engines and social media, where email tools never see them. The phishing that does arrive by email is harder to catch too, because attackers send it through legitimate services that pass authentication checks and hide the page behind bot checks that show scanners something harmless.
For each tool, we look at how it detects phishing, which delivery channels it can see, and where its coverage ends.
How the 10 best anti-phishing solutions compare
1. Push Security – Browser security
Best for: detecting and blocking phishing pages, however the link reaches your employees.
Push is a browser extension that detects and blocks phishing pages as your employees land on them. Instead of checking URLs against a list of known bad sites, Push uses behavioral phishing detection: it looks at how the page is built, what its scripts do and what happens to the credentials typed into it. That's how it catches AiTM kits, cloned login pages and fake browser pop-ups, even on a domain that was registered an hour ago.
Because Push works inside the browser session, it sees the page the way your employee sees it, not the message that carried it or a copy loaded somewhere else, so the delivery channel doesn't matter. An email, a LinkedIn message, a search ad, and IM link all lead to the same place. The same anti-phishing controls cover ClickFix and other malicious copy-and-paste attacks, device code phishing and OAuth consent phishing, and Push detects stolen sessions when they're replayed in another browser. Behind the scenes, AI agents hunt across browser telemetry for new attack techniques and roll out new detections without waiting for a person to step in. Push works in the browsers your team already uses, including on contractor and unmanaged devices.
Push detected 6 ClickFix attacks and 10 AiTM phishing attempts during a 30-day proof-of-value at a financial services organization of around 4,500 employees. None of them were visible to the security stack already in place that included email security, EDR, a network proxy, and user awareness training.
Where it stops: Push doesn't scan email content, attachments or headers. If a BEC email never links to a malicious page, that's a job for your email security. Anything that executes on the device is EDR territory, but while Push can't see on-device execution, it can detect and stop attacks before they break through to the endpoint.
2. Proofpoint – Email security
Best for: large enterprises with complex email environments.
Proofpoint is one of the most established names in enterprise email security, with two decades of insight into how attacks reach people through email. Its Core Email Protection uses behavioral AI to catch phishing and BEC, and it protects messages before delivery, in the mailbox and again when someone clicks a link. Proofpoint's wider collaboration security platform extends that protection to messaging and collaboration tools. Email security like this still does a huge amount of work in most stacks: in the 2026 DBIR, 80% of attacks blocked by email security gateways were credential or session phishing.
Where it's heading: Like other email security tools, Proofpoint has traditionally lost sight of an attack once someone clicks through to the web page. Proofpoint has acknowledged that gap and chosen to partner with Push to close it. Announced in September 2026, Proofpoint Advanced Browser Protection uses Push's behavioral detection to extend Proofpoint's coverage from the inbox into the browser session, with browser telemetry feeding back into Proofpoint's investigation tools. It's a strong signal of where phishing defense is heading: even the leading vendors in email security now see the browser as the place to stop modern threats.
3. Abnormal AI – Email security
Best for: catching BEC and socially engineered emails.
Abnormal connects to Microsoft 365 and Google Workspace by API and learns who normally emails whom. That makes it very good at catching BEC, vendor fraud and the plain-text emails that older gateways miss. In July 2026, it extended its platform with Identity Threat Protection and AI Governance, applying the same behavioral model to sign-in and identity signals.
Where it stops: Abnormal's view is built from email, sign-in and communication signals. It can flag an account that starts behaving strangely after a compromise, but if the phishing link arrives by text message or search ad, Abnormal never sees the page that captured the credentials.
4. Mimecast – Email security
Best for: email security, collaboration security and human risk from one vendor.
Mimecast combines a mature secure email gateway with a human risk management platform. Its 2024 acquisition of Aware added AI analysis of messages in collaboration tools like Slack and Teams, aimed mainly at data loss and compliance risk.
Where it stops: Like most email security, Mimecast judges links from outside the employee's browser. Phishing kits that hide behind bot checks show those scanners a harmless page, and 95% of in-browser attacks Push detected used bot-protection services to hide. Links from channels Mimecast doesn't connect to never pass through it at all.
5. Microsoft Defender for Office 365 – Email security
Best for: Microsoft 365 organizations that want built-in protection.
If you're on Microsoft 365, Defender for Office 365 may already be part of your license, which makes it a natural starting point. Safe Links scans links during mail flow and checks them again at click time in Outlook, Teams and supported Office apps, and Microsoft sees an enormous volume of phishing to learn from.
Where it stops: Safe Links protects links clicked inside Microsoft's own apps, so a link opened from personal email, LinkedIn or a search result never reaches it. Its click-time check leans on a list of known malicious URLs, with unknown ones detonated in the background, so a phishing domain registered that morning has little reputation to go on. Microsoft's own documentation describes a configuration in which a link that was clean on delivery and weaponized later gets through.
6. Varonis Interceptor (built on SlashNext) – Email security
Best for: phishing across email and collaboration apps.
SlashNext made its name catching phishing by opening links in cloud-hosted virtual browsers at scale. Varonis agreed to acquire SlashNext in September 2025 and launched Interceptor on its technology a month later. Interceptor is an API-based email security platform that combines language analysis, computer vision, behavioral analysis and a phishing sandbox that follows links and simulates what a person would do after the click. It also covers Teams, Slack and WhatsApp, and it can look back through your mail for threats your current tools missed.
Where it stops: Simulating the post-click journey is a smart answer to the scanner problem. But it still happens in a virtual browser in Varonis's cloud, not in your employee's browser, so a sandbox-aware kit that checks who's visiting can still show it a harmless page. Coverage also depends on the channels Interceptor connects to, which leaves a link from a search ad outside its view.
7. Google Safe Browsing – Built-in web browsing protection
Best for: a free baseline that's already switched on.
Google Safe Browsing is the phishing protection most of your employees already have. It's built into Chrome and used by other browsers too, and Google says it protects more than five billion devices by warning people before they open a dangerous site or download a harmful file. By default, Chrome checks each site against a list of known dangerous sites. Enhanced Protection, which admins can turn on with the SafeBrowsingProtectionLevel policy, adds real-time checks on uncommon sites and computer-vision analysis of suspicious pages. Google reports that Enhanced Protection users are phished 20–35% less than users on the standard setting.
Where it stops: Google itself describes the default hash-based checks as "inherently limited as they rely on lookups to a list of known bad sites," which means a new phishing domain has to be found and listed before it's blocked. Enhanced Protection narrows that gap, but it still judges whether a site is dangerous, so it has little to go on when the attack runs on a legitimate one. Device code phishing uses Microsoft's real login page, and phishing pages hosted on trusted services like SharePoint or Cloudflare inherit their reputation.
8. Zscaler – Secure web gateway
Best for: organizations that route web traffic through a cloud proxy.
Zscaler Internet Access is a cloud secure web gateway (SWG) that inspects web traffic in Zscaler's cloud and filters URLs by category and risk. Zscaler says it uses AI and ThreatLabz threat intelligence to detect new phishing domains, and its AI Smart Isolation opens risky-looking sites in an isolated browser instead of blocking them outright. Zscaler also acquired the browser security startup SquareX in early 2026 to bolster its browser isolation capabilities and tackle threats passing through the browser to the endpoint.
Where it stops: An SWG sees network traffic, not the page your employee sees. It can block a URL it knows is bad, but phishing kits that rotate domains, hide behind bot checks or run on trusted infrastructure look like ordinary web traffic, and device code phishing happens on Microsoft's own login page. Coverage also depends on traffic going through the proxy, which leaves out unmanaged and contractor devices that don't run the Zscaler client. We compare the two approaches in more detail on our SWG comparison page.
9. KnowBe4 – Security awareness training
Best for: security awareness training and phishing simulation at scale.
KnowBe4 is one of the most widely used awareness training platforms, trusted by more than 70,000 organizations. It pairs simulated phishing with PhishER, which helps your team sort through the emails employees report, and since buying Egress in 2024 it also offers email security. Training matters most for phishing that never involves a web page, like a phone call to the help desk or an email asking finance to pay a new invoice.
Where it stops: Training helps people recognize the signs of phishing, but AI is making those signs harder to find. A study of more than 19,500 UC San Diego Health employees found no significant link between recent annual training and whether people fell for phishing, and training shown after a click reduced the likelihood of clicking by only about 2%. Your employees aren't the weakest link. They're the ones being targeted, and they deserve help in the moment it matters, not a reminder from last quarter's training.
10. CrowdStrike – Endpoint security
Best for: catching what runs on a device after a phishing lure lands.
CrowdStrike Falcon is one of the leading EDR platforms. It's built to detect what phishing leaves behind on a device, like an infostealer, a malicious attachment opened in a desktop email client, or a command someone ran after falling for a ClickFix lure.
Where it stops: All EDR solutions have the same problem: it watches the operating system, and most phishing never touches it. To EDR, Chrome looks like a normal process while a session token is being stolen inside it, and CrowdStrike's own 2026 Global Threat Report found that 82% of detections are now malware-free.
To solve this gap, CrowdStrike acquired Seraphic in early 2026 and now sells it as Falcon Seraphic Enterprise Browser, which CrowdStrike says monitors activity inside the browser session to block threats. That makes Seraphic the part of the CrowdStrike ecosystem to evaluate for phishing upstream: an acknowledgement that focusing your defenses at the endpoint is no longer enough.
For buyers evaluating CrowdStrike as a long-term platform bet, the question is what the roadmap looks like 18 months post-close, as development resource is inevitably funnelled into making the integration work rather than staying ahead of the latest threats (in an extremely fast-changing space fuelled by AI-assisted attacker tool development).
Comparison table
Tool | Type | How it detects phishing | Delivery channels it sees | Where it stops |
|---|---|---|---|---|
Push Security | Browser security | Behavioral analysis of the rendered page in the employee's own browser | Any channel that ends in a browser: email, SMS, social media, search, QR codes, chat | Doesn't scan email content; doesn't see execution on the device |
Proofpoint | Email security | Behavioral AI on email, with protection before delivery, in the mailbox and at click time | Email, plus messaging and collaboration tools through its wider platform | Loses sight after the click today; browser protection powered by Push due early 2027 |
Abnormal AI | Email security | Behavioral baselines of who emails whom, via API | Microsoft 365 and Google Workspace email, plus sign-in signals | Doesn't see links or pages delivered outside email |
Mimecast | Email security | Secure email gateway that scans messages and links | Email, plus collaboration tools through Aware | Scanners can be shown a decoy page; channels outside its integrations |
Microsoft Defender for Office 365 | Email security | Safe Links checks against known malicious URLs, with background detonation of unknown ones | Outlook, Teams and supported Office apps | Links opened outside Microsoft's apps; fresh domains with no reputation |
Varonis Interceptor | Email security | Language analysis, computer vision and a cloud phishing sandbox, via API | Email, Teams, Slack and WhatsApp | The sandbox runs in Varonis's cloud, not the employee's browser |
Google Safe Browsing | Built-in browsing protection | Checks sites against Google's list of known dangerous sites; Enhanced Protection adds real-time and vision-based checks | Any link opened in Chrome and other browsers that use it | Attacks on legitimate pages; new domains not yet listed |
Zscaler | Secure web gateway | URL filtering, threat intelligence and AI phishing domain detection on proxied traffic, with isolation for risky sites | Web traffic routed through Zscaler | Sees traffic, not the rendered page; devices outside the proxy |
KnowBe4 | Security awareness training | Simulated phishing, training and triage of reported emails | Relies on people spotting lures that AI is making harder to spot | |
CrowdStrike | Endpoint security | EDR on the operating system, with Seraphic added for the browser | Whatever reaches the device | EDR doesn't see in-browser phishing; Seraphic's phishing coverage is worth testing |
How to evaluate anti-phishing tools
Whichever vendors make your shortlist, a few questions separate the tools that will keep up with modern phishing from the ones that won't:
Does it detect behavior or reputation? Ask what happens with a phishing page on a domain registered an hour ago. Most phishing domains are active for less than two days, so a tool that waits for a blocklist update will usually be too late.
Which delivery channels does it actually see? Map where your employees really receive links — email, Teams, Slack, LinkedIn, SMS, search — against what each tool connects to.
Does it see the page your employee sees? Scanners and sandboxes can be fed a decoy by kits that check who's visiting, so ask how the tool handles bot-protection services like Cloudflare Turnstile.
What techniques are covered? Phishing isn’t just about stealing passwords anymore. AiTM kits steal the session after MFA completes, device code and consent phishing get the user to authorize the attacker on a real login page, and ClickFix gets them to paste and run a malicious command. Ask which of these each tool detects, and how.
Does it cover unmanaged devices? Contractors and BYOD users get phished too, and many tools need MDM or a managed endpoint to work.
Can you test it on your own traffic? A proof-of-value against real activity in your environment tells you more than any detection-rate claim.
Learn more about Push Security
Push Security is the most powerful AI-native security tool in the browser. Think EDR, but for the browser — high-fidelity telemetry and real-time control across every session, on every device, with no browser migration required.
Security teams use Push to detect and stop advanced browser-based attacks like AiTM phishing, ClickFix, and session hijacking; gain visibility and control over AI tool usage across their workforce; harden identities by surfacing credential reuse, SSO gaps, and shadow IT; and support data loss and insider investigations with browser-layer telemetry that other tools can't see.
Book a live demo to learn more.
Anti-phishing software and tools: frequently asked questions
What are the best tools to detect phishing?
Most organizations rely on a mix of tools covering different vantage points. Email security like Proofpoint, Abnormal AI, Mimecast, Microsoft Defender for Office 365 and Varonis Interceptor analyzes messages and links, which makes it strong on BEC, but it can't see phishing that arrives through any other channel. Built-in browser protection like Google Safe Browsing and secure web gateways like Zscaler block sites already known to be dangerous, which leaves brand-new domains and attacks using legitimate pages and infrastructure in the chain. EDR platforms like CrowdStrike detect what executes on a device, but most phishing never touches the operating system. The best phishing detection happens in the browser, where almost every phishing attack ends up executing or passing through. Browser-based detection like Push analyzes every page accessed in employee browsers in real time, so it catches phishing from any delivery channel and infrastructure and blocks it before the user can interact with it.
How do you prevent phishing attacks, and what are the best phishing prevention tools?
Start where the attacks meet. Almost every phishing attack ends on a web page in the browser, so browser security like Push is the core phishing prevention tool: it blocks the phishing page however the link arrived, and when someone is about to do something risky, it gives them a clear warning in the moment rather than relying on training they took months ago. Then cover the rest. Email security like Proofpoint or Abnormal AI filters email-borne phishing and catches link-free BEC, phishing-resistant MFA such as passkeys stops most credential replay once the weaker fallback methods are removed, and awareness platforms like KnowBe4 help people spot and report the scams that never involve a web page. Our top 10 browser security solutions guide covers the browser layer in more depth.
Is phishing still an email problem?
Not anymore, or at least not only. Your employees can get a phishing link in a LinkedIn DM, a sponsored search result, a text message, a QR code or a Slack message. Push data shows that 1 in 2 payloads intercepted by Push were sent over channels like search engines and social media rather than email, and 4 in 5 ClickFix pages Push intercepted were accessed from search engines via malvertising, SEO poisoning and compromised webpages. The Verizon 2026 DBIR found that 41% of social engineering breaches involved channels beyond email, and Mandiant's M-Trends 2026 saw email phishing fall from 14% to 6% of initial infection vectors in a single year.
How do phishing attacks get through email controls?
Many skip email altogether and arrive through social media, search ads, text messages or chat apps. Others are sent through legitimate services, so they pass SPF, DKIM and DMARC. Many hide behind bot checks, so link scanners only ever see a harmless page. Attackers also swap domains faster than blocklists can keep up, with 89% of phishing domains are active for less than two days.
How do I stop employees getting phished?
Treat phishing as a technical problem, not a human one you can out-train. Training can't keep up with how varied phishing has become. A lure might arrive by email, LinkedIn, text message, Teams or a search ad, and the payload might be a fake login page, a device code prompt on a real Microsoft page, an OAuth consent request or a fake CAPTCHA asking them to paste a command. New techniques spread fast too. Attackers abuse interactions that don't feel like phishing at all: entering a code on a real Microsoft login page, or following the steps on what looks like a routine CAPTCHA. No training program can teach people to spot every variation, especially when nothing about the interaction looks wrong. Instead, block the phishing page as soon as someone lands on it, and use the block as a teachable moment: a real attack, explained at the exact moment your employee met it, rather than training delivered in a vacuum.
How do I detect and block AiTM phishing?
AiTM kits like Tycoon 2FA and Evilginx sit between the user and the real login page, relaying credentials and MFA in real time and stealing the session that results. Because the domains rotate constantly, the most reliable way to detect them is by behavior: how the page is built, what its scripts do and how it handles credentials. Push detects AiTM pages this way in the browser and blocks them before the user hands over anything.
Does MFA stop phishing?
Not on its own. AiTM kits relay the login in real time, so the user completes MFA as normal and the attacker leaves with their session. AiTM is now the dominant phishing technique: the 2026 Microsoft Digital Defense Report found it accounts for 44.6% of all phishing techniques Microsoft identified. Passkeys close a lot of this gap, because a passkey only works on the real website and an AiTM kit can't relay it. They don't close all of it. Accounts that still accept SMS or authenticator codes as a fallback can be downgraded to the weaker method, and authorization-layer phishing attacks get the user to authorize the attacker on the real login page, where the passkey works exactly as intended.
Do passkeys and FIDO2 stop phishing, and can passkey logins be phished?
Passkeys stop a lot of phishing, and they're well worth rolling out. A passkey only works on the real website, so an AiTM kit on a lookalike domain can't use it or pass it along. Passkey logins can't be phished directly, but they can be sidestepped, because passkeys protect one step: the login itself. If an account still accepts SMS or authenticator codes as a backup, MFA downgrade attacks push the user toward the weaker option. Authorization-layer phishing attacks like device code phishing and ConsentFix trick the user into authorizing the attacker on a legitimate login page, so the passkey works exactly as designed and the attacker still gets a token. Some attackers have even talked employees into registering the attacker's passkey during a phone call.
Removing fallback methods closes part of the gap, but only if you know where they are. Your IdP only sees the logins that go through it, and many apps still accept a password directly or keep a local account alongside SSO: 2 in 5 logins aren't protected by MFA. Measuring how employees actually log in to every app, including which use passkeys and which still use passwords, shows you where the rollout has gaps. Browser-based detection handles the rest of these attacks, detecting and stopping them in the browser before the user completes the authentication or authorization.
Why don't blocklists stop phishing sites?
Because most phishing sites are gone before they're listed. 89% of phishing domains are active for less than two days, so by the time a URL lands on a blocklist, the attacker has usually moved on. Many kits also hide behind bot checks (95% of phish kits we see use bot protection) which means security scanners see a harmless page while real people see the phishing page.
How do I detect AI-generated phishing?
It can be tough to tell AI-generated phishing apart from the real thing. The emails are well written and the pages look right, and 90% of phishing kits analyzed by Push in 2026 involve some kind of AI-generated tell. What helps is focusing on what a phishing page has to do rather than how it looks. Whoever (or whatever) built it, the page still needs to capture a login, steal credentials or get someone to paste a malicious command. Browser-based detection looks for that behavior, so it can catch the attack even when nothing looks wrong.
What tools stop ClickFix attacks?
ClickFix tricks people into copying a malicious command and running it themselves, usually behind a fake CAPTCHA or error message. It's now the most common technique Push sees: ClickFix averaged 52% of Push's detections through Q2 2026, and 4 in 5 ClickFix pages Push intercepted were reached from search engines. Stopping it takes tools at two points. Push detects the page writing a malicious command to the clipboard and blocks it, whatever the lure looks like. EDR like CrowdStrike catches payload after the command is run, but leaves detection until the last minute — if this last line of defense fails or doesn't block in real time (not uncommon in the cat-and-mouse detection evasion game) then the attacker gets in.
How do I stop Microsoft phishing?
Microsoft 365 is one of the most common targets for phishing kits, and more and more of those attacks run on Microsoft's own login pages and apps, where URL reputation has nothing to flag. AiTM kits put a convincing Microsoft sign-in page in front of a reverse proxy. Device code phishing sends users to the real Microsoft device login page, and ConsentFix abuses first-party apps like Azure CLI.
Push detects and stops all three in the browser. It identifies AiTM kits by how the page behaves, blocks device code phishing kits and can warn or block on the device code login page itself, and monitors OAuth consent grants so it can block a malicious app before it gets access. Email security still filters what arrives by email, but the browser is where these attacks have to finish, so that's where to stop them.
