The best scam detector Chrome extension in 2026
Most browser security extensions hijack your search engine, flood you with pop-ups, or track your browsing data. We built the one that doesn’t — and the only one that also detects AI-generated images and deepfakes. Try the scanner and see the difference.
No search hijacking. No ads. No tracking. Scans only when you ask.
The extension that doesn’t take over your browser to “protect” it.
| Feature | Cautellus | Other Extensions |
|---|---|---|
| No search engine hijacking | ||
| No ads or sponsored results | ||
| No background tracking | ||
| Scans only when you click | ||
| Data never sold to third parties | ||
| URL / link scanning | ||
| Text / message scanning | ||
| Deepfake / AI image detection | ||
| Page content analysis | ||
| Brand impersonation detection | ||
| Community scam reports (Reddit, forums) | ||
| FBI / FTC alert matching | ||
| Password generator | Plus | |
| Data breach checker | Plus | |
| Browser extension with right-click scan | ||
| Works without an account | ||
| Where-to-report scam directory | ||
| Price | From $9.99/mo | Free (with ads/tracking) or $50–100+/yr bundled |
Cautellus vs Norton Safe Web
Norton only checks URLs against a blocklist — it doesn’t analyze message text, can’t detect AI-generated phishing, and installs a toolbar that modifies your search results with sponsored links. Cautellus scans the actual content of messages, images, and pages, matching against community reports and live FBI/FTC alerts without ever touching your search engine.
Cautellus vs McAfee WebAdvisor
McAfee WebAdvisor is free but collects browsing data and has been widely criticized for excessive pop-ups and false positives. It offers no text scanning, no image detection, and no FBI/FTC alert matching. Cautellus never tracks your browsing, never shows ads, and lets you report scams directly to the agencies that can act on them.
Cautellus vs Avast Online Security
Avast was caught selling user browsing history to advertisers via its Jumpshot subsidiary — a practice that led to an FTC settlement in 2024. Even after the settlement, Avast offers only URL-level protection with no message analysis, no deepfake detection, and no community intelligence. Cautellus never sells your data. Read our full security blog for more on how data-selling extensions put users at risk.
Cautellus vs Malwarebytes Browser Guard
Malwarebytes Browser Guard is the closest competitor in terms of privacy — it blocks ads and trackers well. But it has no scam-specific text analysis, no community intel from Reddit or FBI/FTC sources, no deepfake image detection, and no where-to-report directory for victims. Cautellus is purpose-built for scam detection, not just ad blocking.
Cautellus vs Guardio
Guardio is the closest paid scam-protection extension, and it’s good at blocking known malicious sites in real time. The gaps are shape and price: it’s subscription-only with no free scan to try first, it’s built to block pages you land on rather than to analyze a message, link, or screenshot you paste in on demand, and it has no deepfake / AI-image detection or where-to-report directory. Cautellus gives you an on-demand risk score for text and images too, and lets you start with a single free scan.
Cautellus vs Bitdefender TrafficLight
Bitdefender TrafficLight is a free, lightweight link and search-result checker — it flags risky URLs before you click. That’s the whole scope: no message-text analysis, no AI-image or deepfake detection, no community scam reports, and no FBI/FTC alert matching. Cautellus covers links and the parts of a modern scam a URL check never sees — the message, the photo, and the story.
Cautellus vs standalone deepfake detectors
Single-purpose tools like UncovAI or DeepfakeDetector.ai answer one question — “is this image or video AI-generated?” — and answer nothing else. They don’t scan links, don’t analyze the message the image arrived in, and don’t tell you what to do next. In a real scam the deepfake photo is one flag among several. Cautellus runs AI-image detection alongside link, text, and brand-impersonation checks, so you get a verdict on the whole message — not just the picture.
Why “free” AI security extensions are the new risk
In 2025 and 2026, security researchers repeatedly flagged “AI” browser extensions that quietly read every page you visit, harvest browsing data, or inject content you never asked for — the exact permissions a scam detector asks for are the exact permissions an abusive extension exploits. Avast’s Jumpshot data-selling scandal and its 2024 FTC settlement were the warning; the flood of AI-labeled extensions since is the aftershock. That’s why Cautellus is built the opposite way on purpose: it scans only when you click, never runs in the background, never sells or shares your data, and works without an account. A tool that watches for scams shouldn’t behave like one.
What most security extensions get wrong
Search engine hijacking
They replace your default search engine with their own, inserting sponsored results above what you actually searched for.
Background tracking
Some extensions log every URL you visit and sell that browsing data to advertisers and data brokers.
URL-only scanning
They only check if a URL is on a blocklist. They can’t analyze the actual message, detect deepfakes, or match against FBI/FTC alerts.
Frequently Asked Questions
What is the best browser extension for scam detection?
Cautellus is the only browser extension that combines URL scanning, text/message analysis, deepfake image detection, and real-time FBI/FTC alert matching in one tool. Unlike Norton or McAfee, it doesn't hijack your search engine, track your browsing, or show ads.
What is the best scam detector Chrome extension in 2026?
For all-in-one scam detection, Cautellus. URL checkers like Norton Safe Web, McAfee WebAdvisor, and Bitdefender TrafficLight only tell you if a link is on a blocklist. Guardio blocks known bad sites but is subscription-only with no free scan and no image analysis. Standalone deepfake detectors only judge a photo. Cautellus is the one extension that scans links, message text, and AI-generated images together, matches against FBI/FTC alerts and community reports, and lets you start with a single free scan (then Cautellus Plus, $9.99/mo).
Are free scam-detector extensions safe to install?
Not automatically. A scam detector needs permission to read the pages you visit — and that is the same permission an abusive extension uses to harvest browsing data. Researchers flagged a wave of data-harvesting "AI" extensions in 2025–2026, and Avast was fined by the FTC in 2024 for selling browsing history. Look for an extension that scans only when you click, never runs in the background, and never sells your data. Cautellus is built that way and works without an account.
Does Norton protect you from scams?
Norton Safe Search checks URLs against a blocklist, but it can't analyze message text, detect AI-generated phishing images, or match against community scam reports. It also replaces your default search engine with Norton's own, inserting sponsored results — a behavior many users find disruptive.
Is McAfee WebAdvisor safe to use?
McAfee WebAdvisor provides basic URL reputation checks, but it collects browsing data and has been criticized for excessive pop-ups and false positives. It offers no text scanning, no image analysis, and no FBI/FTC alert integration.
Can a browser extension detect phishing emails?
Most browser security extensions only check URLs. Cautellus also analyzes the actual text content of messages — detecting urgency tactics, brand impersonation language, payment demands, and other phishing patterns that URL-only checkers miss entirely.
Does Cautellus sell my data?
No. Cautellus never sells, shares, or transfers your data to third parties. Scanned content is analyzed in real-time and immediately discarded. The extension only activates when you click — it never runs in the background or tracks your browsing. Full details at cautellus.com/privacy.
Is Cautellus free?
Cautellus offers a trial scan so you can see how it works. After that, the Plus plan ($9.99/mo) gives you unlimited scam scans, 50 AI image detections, full data breach reports, password generator, SMS scam number database, and the Chrome extension.
Ready to switch?
Try a scan. See what your current extension misses.
One free scan to try it, then Cautellus Plus ($9.99/mo). No search hijacking, no ads, no tracking.