Telecom Signaling Abuse Exposes MFA SMS Reliability
Researchers documented active abuse of telecom signaling weaknesses to intercept one-time passcodes. Fraud and account takeover rates rose in targeted regions.
## What happened Attackers redirected SMS delivery in specific carrier pathways and combined it with phishing kits. ## Why this matters beyond one victim SMS remains a default second factor in many sectors, so telecom-layer abuse has wide downstream effects. ## Technical notes Passkey and app-based authenticator adoption markedly reduced successful takeovers. ## What happened Attackers redirected SMS delivery in specific carrier pathways and combined it with phishing kits. Why this matters: validate exposure and assign an owner if affected. Researchers documented active abuse of telecom signaling weaknesses to intercept one-time passcodes.
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