CypherSeal — Invoice Fraud Detection for Gmail

Invoice fraud & BEC detection for Gmail. Flags spoofed domains, changed bank details & fake urgency — email analysis runs locally.

CypherSeal is invoice-fraud and business email compromise (BEC) detection for Gmail. It catches the spoofed domains, changed bank details, and fake-urgency tactics behind wire fraud, vendor-payment scams, and email fraud — reading each email and invoice locally in your browser, before you act on it. Gmail checks whether an email is spam. It doesn't check whether the invoice inside is real. CypherSeal reads it first. BEC isn't a flashy attack. It's one wrong invoice on a Tuesday morning — a vendor's bank details quietly changed, a domain off by one letter, a "process this today" that skips your normal review. CypherSeal catches it at the moment it's being read. ➤ The 5 questions your inbox can't answer - Who really sent this? — look-alike domains, display-name tricks, reply-to mismatches - Where's the money going? — remembers payment details, flags when they change - Why the rush? — detects pressure tactics built to bypass careful review - Does this add up? — flags amounts that break the sender's pattern - Who's really asking? — catches impersonation and secrecy patterns ➤ How it works 1. Add to Chrome — one click, no configuration, no account 2. Open any email and click Scan — an instant verdict with the evidence behind it 3. CypherSeal learns your contacts and flags what doesn't belong ➤ What's included Free — the full detection engine, forever: - Unlimited manual scans - The complete fraud-detection engine - Contact Graph + Invoice Registry (on-device memory of who you deal with and how they pay) - A verdict, the evidence, and a recommended action on every scan - No account required Pro — $19/month or $190/year (14-day free trial): - Every email checked automatically, not just the ones that look suspicious - Bank-detail changes flagged the moment they happen — the #1 way BEC drains six-figure wires - Critical-risk emails blurred until you review the warnings - One-click PDF evidence report for your accountant, bank, insurer, or lawyer - Weekly inbox summary — threats caught, new senders, behavioral changes ➤ Built for people who move money Bookkeepers, accounts-payable teams, fractional CFOs, and small-business owners — anyone who approves payments and would personally carry the loss if a fraudulent invoice slipped through. ➤ Privacy: email analysis runs locally - Your email content and analysis never leave your device - Usage counts stay on your device — no third-party analytics, advertising, or telemetry - CypherSeal does NOT request gmail.readonly — it cannot read your inbox through any server API - The only data sent off-device is your Google account email, used solely to verify Pro status - Uninstall removes everything Business email compromise caused $3.05 billion in reported losses across 24,768 complaints in 2025 (FBI IC3). CypherSeal is a fraud detection aid, not a guarantee. Always verify payment changes through an independent channel. Privacy Policy: https://cypherxtech.com/legal/privacy Terms of Service: https://cypherxtech.com/legal/terms