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
BEC/Fraud: Urgent language and suspicious sending/infrastructure patterns
3d ago
Apr 17th, 2026
Sublime Security
Advance Fee Fraud (AFF) from freemail provider or suspicious TLD
6d ago
Apr 14th, 2026
Sublime Security
Link: Tax document lure Portuguese/Spanish with suspicious domains
6d ago
Apr 14th, 2026
Sublime Security
Link: Shortened URL with fragment matching subject
11d ago
Apr 9th, 2026
Sublime Security
Brand impersonation: McAfee
11d ago
Apr 9th, 2026
Sublime Security
Attachment: Calendar invite with Google redirect and invoice request
12d ago
Apr 8th, 2026
Sublime Security
Body: PayApp transaction reference pattern
13d ago
Apr 7th, 2026
Sublime Security
VIP impersonation: Fake thread with display name match, email mismatch
17d ago
Apr 3rd, 2026
Sublime Security
Attachment: Legal themed message or PDF with suspicious indicators
17d ago
Apr 3rd, 2026
Sublime Security
Impersonation: Social Security Administration (SSA)
19d ago
Apr 1st, 2026
Sublime Security
Link: RFI document reference pattern in display text
19d ago
Apr 1st, 2026
Sublime Security
Credential phishing: Generic document share template
20d ago
Mar 31st, 2026
Sublime Security
Business Email Compromise: Request for mobile number via reply thread hijacking
20d ago
Mar 31st, 2026
Sublime Security
Attachment: PDF bid/proposal lure with credential theft indicators
24d ago
Mar 27th, 2026
Sublime Security
Business Email Compromise (BEC) with request for mobile number
25d ago
Mar 26th, 2026
Sublime Security
Lookalike sender domain (untrusted sender)
26d ago
Mar 25th, 2026
Sublime Security
VIP impersonation with urgent request (strict match, untrusted sender)
26d ago
Mar 25th, 2026
Sublime Security
VIP impersonation with BEC language (near match, untrusted sender)
26d ago
Mar 25th, 2026
Sublime Security
Brand Impersonation: Procore
1mo ago
Mar 20th, 2026
Sublime Security
Attachment: PDF contains W9 or invoice YARA signatures
1mo ago
Mar 18th, 2026
Sublime Security