Attack Type: BEC/Fraud

Business Email Compromise (BEC) and fraud attacks rely on deception and social engineering. Instead of using links or attachments, attackers impersonate trusted figures like coworkers, executives, or vendors to trick you into sharing sensitive information or transferring funds. These attacks can bypass traditional security tools because the emails often seem harmless.
Expect fake invoices, urgent wire transfer requests, or a vendor asking you to update payment details. The first email is usually brief—just enough to start a conversation. The attacker might spoof a display name, reply to an old thread, or ask you to continue the conversation via personal email or phone. That is often the giveaway.
Even though these attacks may appear low-effort, the impact can be significant. They can lead to wire fraud, compliance violations, and damage to the organization's reputation. Organizations lose billions to BEC attacks each year.
Rule Name & Severity
Last Updated
Author
Types, Tactics & Capabilities
Sender: IP address in local part
2d ago
Mar 12th, 2026
Sublime Security
VIP impersonation with w2 request with reply-to mismatch
2d ago
Mar 12th, 2026
Sublime Security
Brand impersonation: SendGrid
2d ago
Mar 12th, 2026
Sublime Security
BEC/Fraud: Reply-chain manipulation with urgent keywords and self-reply
3d ago
Mar 11th, 2026
Sublime Security
Brand impersonation: McAfee
3d ago
Mar 11th, 2026
Sublime Security
Impersonation: Legal firm with copyright infringement notice
4d ago
Mar 10th, 2026
Sublime Security
BEC/Fraud: Romance scam
5d ago
Mar 9th, 2026
Sublime Security
Request for Quote or Purchase (RFQ|RFP) with suspicious sender or recipient pattern
5d ago
Mar 9th, 2026
Sublime Security
Link: Google Drawings link from new sender
5d ago
Mar 9th, 2026
Sublime Security
Suspicious display name: Gmail sender with engaging language
8d ago
Mar 6th, 2026
Sublime Security
Service abuse: Nylas tracking subdomain with suspicious content
8d ago
Mar 6th, 2026
Sublime Security
Service abuse: HungerRush domain with SendGrid tracking targeting ProtonMail
10d ago
Mar 4th, 2026
Sublime Security
BEC with unusual reply-to or return-path mismatch
11d ago
Mar 3rd, 2026
Sublime Security
Fake warning banner using confusable characters
12d ago
Mar 2nd, 2026
Sublime Security
VIP / Executive impersonation (strict match, untrusted)
17d ago
Feb 25th, 2026
Sublime Security
Tax Form: W-8BEN solicitation
19d ago
Feb 23rd, 2026
Sublime Security
Reconnaissance: Email address harvesting attempt
19d ago
Feb 23rd, 2026
Sublime Security
Link: WordPress login page with Blogspot Binance scam
25d ago
Feb 17th, 2026
Sublime Security
Link: Hotel booking spoofed display URL
25d ago
Feb 17th, 2026
Sublime Security
File sharing link with a suspicious subject
25d ago
Feb 17th, 2026
Sublime Security