Unsubscribe from online scams.
Cody runs quietly in your browser and blocks the tricks scammers use to hijack screens, trap cursors, and fake virus warnings. It catches 13 attack patterns in real time. Available for Chrome.
Chrome Web Store coming soon — Beta early access →
Your friendly scam blocker.
Cody spots scam patterns the moment they fire and shuts them down before anything appears on screen.
Invisible defense that just works
No configuration. No accounts. No decisions to make. Cody handles everything.
Runs silently
Detects the specific browser API patterns that scammers use to hijack screens. Zero performance impact.
Blocks instantly
When a scam pattern is detected, Cody kills it before anything appears on screen. No popups, no scary warnings.
Notifies you
Get a notification when Cody blocks a scam. Share your team dashboard so everyone stays in the loop.
What Cody stops
Online scams that target vulnerable people through their browser. Cody blocks these attack patterns in real time.
Screen takeover attacks Active
Fullscreen API abuse that hides the browser and fakes an OS crash
Fake virus warnings Active
Alert/confirm dialog spam showing “Your PC is infected” messages in a loop
Cursor & keyboard hijacking Active
Pointer lock and keyboard lock that trap the user with no way to close the page
Back button traps Active
History.pushState spam that fills the back button so the user can’t navigate away
Exit prevention traps Active
Beforeunload handlers that show “Are you sure?” dialogs repeatedly to prevent leaving
Phishing link detection Active
Scores every link on the page for phishing signals: lookalike domains, suspicious TLDs, redirect unwrapping, brand impersonation
Remote access tool alerts Active
Flags visits to TeamViewer, AnyDesk, and other remote desktop tools scammers ask victims to install
Suspicious download scanning Active
Detects links to executable files (.exe, .msi, .bat, .scr) that scam pages try to get you to download
Scam phone number detection Active
Scans page text for phone numbers paired with scam language like "call Microsoft support immediately"
Clipboard hijacking Active
Warns when a page tries to silently overwrite your clipboard with a crypto address or malicious command
Screen-share interception Active
Warns when a page requests screen sharing via getDisplayMedia, a common step in remote-access scams
Popup storms Active
Rapid window.open calls that flood the screen with new windows, overwhelming the user and hiding the real browser
Site impersonation Active
Detects pages mimicking trusted brands like Microsoft, Apple, or Google to trick users into calling fake support numbers
How scammers take over a browser
They chain three browser APIs together to make it look like the computer is frozen, then show a fake virus warning with a phone number.
Fullscreen takeover
Hides the address bar and tabs. The scam page fills the entire screen, mimicking the operating system.
Cursor hijack
Locks and hides the mouse pointer. The user can't click away, close tabs, or reach the X button.
Keyboard trap
Blocks Escape, Alt+Tab, Ctrl+W, and other keys. There's no obvious way out. Panic sets in.
See Cody in action
These are real browser API calls. With Cody installed, they get blocked. Without it, the simulated scam overlay takes over.
Browser API Console
InteractiveBuilt different from antivirus
No scare tactics. No data harvesting. No upsells. Just honest scam blocking.
No data by default
All detection runs locally. Data only leaves your browser if you opt into a team.
Open source
Every line of code is public on GitHub.
Free core, forever
All scam blocking is free. The optional Team plan ($9/mo) adds a shared dashboard.
30-second install
Install on Chrome. Nothing to configure.
Common questions
What exactly does Cody block?
Cody catches 13 scam patterns: screen takeovers (fullscreen, pointer lock, keyboard lock), dialog spam, exit traps, history spam, popup storms, phishing links, scam phone numbers, remote-access tool visits, suspicious downloads, screen-share requests, and clipboard hijacking.
Does Cody collect any data?
Not by default. All detection runs locally in your browser with zero analytics or tracking. If you sign in and join a team, block events and your profile are synced to a shared dashboard. Read our privacy policy.
Will it slow down the computer?
No. Cody only activates when it detects a scam pattern. It uses virtually no CPU or memory during normal browsing.
What if a legitimate site gets blocked?
Extremely rare. Cody targets scam-specific behavior patterns, not websites. If it happens, you can allowlist any site in one click.
Is it really free?
Yes. All scam blocking is free forever. Optional paid plans (Pro $5/mo, Team $9/mo, Business $25/mo) add teams, more devices, alerts, API access, and SSO. See pricing.
Keep someone you love safe.
Install Cody on your parent's computer next time you visit. Available for Chrome.
Get Cody — FreeYour PC Has Been Compromised!
Windows Defender has detected Trojan_Spyware.Alert — Error Code: #0x80073b01
Your passwords, browser history, and credit card information are at risk.
Do NOT shut down or restart your computer.
Call Microsoft Certified Technicians immediately
Exit: Ctrl+Alt+Del (Win) or Cmd+Option+Esc (Mac)