T1449: Exploit SS7 to Redirect Phone Calls/SMS
An adversary could exploit signaling system vulnerabilities to redirect calls or text messages (SMS) to a phone number under the attacker's control. The adversary could then act as an adversary-in-the-middle to intercept or manipulate the communication. [1] [2] [3] [4] [5] Interception of SMS messages could enable adversaries to obtain authentication codes used for multi-factor authentication[6].
This ATT&CK object is revoked or deprecated in the current MITRE ATT&CK release.
It remains available for historical context and inbound links. Use current ATT&CK relationships and replacement guidance before basing detection or reporting work on this page.
Analyst summary pending validation
Glexia publishes ATT&CK takes only after source-hash and schema validation. Until then, use the official MITRE definition below and the defensive relationship context on this page.
Exploit SS7 to Redirect Phone Calls/SMS
An adversary could exploit signaling system vulnerabilities to redirect calls or text messages (SMS) to a phone number under the attacker's control. The adversary could then act as an adversary-in-the-middle to intercept or manipulate the communication. [1] [2] [3] [4] [5] Interception of SMS messages could enable adversaries to obtain authentication codes used for multi-factor authentication[6].
How security teams should use this page
Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.
All related ATT&CK context
No relationships are available in the current normalized data for this object.
Object version and sync metadata
The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates .
Imported snapshots across ATT&CK releases (1)
| Release | Bundle imported | Object version | Modified | Status | Raw hash |
|---|---|---|---|---|---|
| 19.1 | 1.2 | Current bundle Deprecated | 95d0bd491b38… |
Mirrored ATT&CK source object
The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.
External references and citations
MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.
-
[1]
Engel-SS7
Tobias Engel. (2014, December). SS7: Locate. Track. Manipulate.. Retrieved December 19, 2016.
Open source URL -
[2]
Engel-SS7-2008
Tobias Engel. (2008, December). Locating Mobile Phones using SS7. Retrieved December 19, 2016.
Open source URL -
[3]
3GPP-Security
3GPP. (2000, January). A Guide to 3rd Generation Security. Retrieved December 19, 2016.
Open source URL -
[4]
Positive-SS7
Positive Technologies. (n.d.). SS7 Attack Discovery. Retrieved December 19, 2016.
Open source URL -
[5]
CSRIC5-WG10-FinalReport
Communications Security, Reliability, Interoperability Council (CSRIC). (2017, March). Working Group 10 Legacy Systems Risk Reductions Final Report. Retrieved May 24, 2017.
Open source URL -
[6]
TheRegister-SS7
Iain Thomson. (2017, May 3). After years of warnings, mobile network hackers exploit SS7 flaws to drain bank accounts. Retrieved November 8, 2018.
Open source URL -
[7]
NIST Mobile Threat Catalogue CEL-37Open source URL
-
[8]
mitre-attack T1449Open source URL
Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.