Tactic or Technique: Out of band pivot

Attackers use out-of-band pivoting to move conversations off email and onto channels with less security oversight. They start with a simple message and then try to shift the conversation to phone, text, WhatsApp, or personal email, where monitoring and protections are weaker or nonexistent.
A message may reference an urgent issue and include a phone number, QR code, or request to continue the conversation elsewhere. Once the communication moves off email, attackers can push the scam further without being seen by security tools.
This tactic works because it breaks the visibility chain. Email security may catch a bad link or attachment, but it can’t detect what happens in a phone call or private chat. That gap gives attackers more freedom to ask for credentials, convince you to take risky actions, or escalate the attack without triggering alerts.
Rule Name & Severity
Last Updated
Author
Types, Tactics & Capabilities
Callback phishing in body or attachment (untrusted sender)
3d ago
Mar 27th, 2026
Sublime Security
Service abuse: AWS SNS callback scam impersonation
4d ago
Mar 26th, 2026
Sublime Security
Callback phishing via Microsoft comment
4d ago
Mar 26th, 2026
Sublime Security
Service abuse: Google Calendar notification with callback scam language
14d ago
Mar 16th, 2026
Sublime Security
Brand impersonation: GitHub with callback scam indicators
19d ago
Mar 11th, 2026
Sublime Security
Service abuse: Microsoft Power Automate callback scam impersonation
25d ago
Mar 5th, 2026
Sublime Security
Callback Phishing via Zoom comment
1mo ago
Feb 11th, 2026
Sublime Security
Service abuse: WeTransfer callback scam
1mo ago
Jan 30th, 2026
Sublime Security
Service abuse: Monday.com callback scam
2mo ago
Jan 26th, 2026
Sublime Security
Service abuse: Microsoft Power BI callback scam
2mo ago
Jan 22nd, 2026
Sublime Security
Service abuse: GetAccept callback scam content
2mo ago
Jan 16th, 2026
Sublime Security
Service abuse: Google classroom solicitation
2mo ago
Jan 12th, 2026
Sublime Security
Callback phishing via Yammer comment
2mo ago
Jan 12th, 2026
Sublime Security
HR impersonation via e-sign agreement comment
2mo ago
Jan 12th, 2026
Sublime Security
Benefits enrollment impersonation
2mo ago
Jan 12th, 2026
Sublime Security
Link: ScreenConnect installer with suspicious relay domain
2mo ago
Jan 12th, 2026
Sublime Security
Attachment: Callback phishing solicitation via image file
2mo ago
Jan 12th, 2026
@vector_sec
Callback phishing via Xodo Sign comment
2mo ago
Jan 12th, 2026
Sublime Security
Callback Phishing via Signable E-Signature Request
2mo ago
Jan 12th, 2026
Sublime Security
Callback phishing via SignFree e-signature request
2mo ago
Jan 12th, 2026
Sublime Security