Attack Type: Extortion

Extortion attacks use fear and intimidation to pressure you into paying money or handing over sensitive information. These emails often claim the sender has access to private data, recordings, or control over your systems and threaten to release it unless you comply. The goal is to scare you into acting quickly, usually by demanding payment in cryptocurrency.
Sextortion is a common version, where attackers claim to have recorded you through your webcam and threaten to share the footage unless you pay. To make the threat more believable, they might include a password from an old data breach or refer to a personal detail scraped from the web.
Other versions can be more extreme, such as threats of physical harm, fake hitman contracts, or warnings that your company will be taken offline in a DDoS attack. While most of these messages are completely fake, they’re designed to feel personal and urgent. Even when they’re not real, they can cause real anxiety. That’s why it’s important to report them and avoid responding or paying.
Rule Name & Severity
Last Updated
Author
Types, Tactics & Capabilities
Extortion / sextortion (untrusted sender)
12d ago
Oct 31st, 2025
Sublime Security
/feeds/core/detection-rules/extortion-sextortion-untrusted-sender-265913eb
Potential prompt injection attack in body HTML
1mo ago
Sep 29th, 2025
Sublime Security
/feeds/core/detection-rules/potential-prompt-injection-attack-in-body-html-5fb24736
Brand impersonation: Vanguard
1mo ago
Sep 22nd, 2025
Sublime Security
/feeds/core/detection-rules/brand-impersonation-vanguard-3bd048fe
Suspicious Links to Cloudflare R2 and Edge Services
1mo ago
Sep 20th, 2025
Sublime Security
/feeds/core/detection-rules/suspicious-links-to-cloudflare-r2-and-edge-services-5dd3e5c8
Encrypted Microsoft Office files from untrusted sender
3mo ago
Aug 5th, 2025
Sublime Security
/feeds/core/detection-rules/encrypted-microsoft-office-files-from-untrusted-sender-eb7b26e7
Brand impersonation: WeTransfer
3mo ago
Aug 5th, 2025
Sublime Security
/feeds/core/detection-rules/brand-impersonation-wetransfer-e37885ad
Extortion / sextortion in attachment from untrusted sender
3mo ago
Aug 5th, 2025
Sublime Security
/feeds/core/detection-rules/extortion-sextortion-in-attachment-from-untrusted-sender-3cb8d32c
Mismatched links: Free file share with urgent language
3mo ago
Aug 5th, 2025
Sublime Security
/feeds/core/detection-rules/mismatched-links-free-file-share-with-urgent-language-478334c8