Ofcom closes technical loophole used by criminals to intercept mobile calls and texts
ID: 20b47f81-c275-592e-89b2-4d9818a10ec3
STIX ID: report--20b47f81-c275-592e-89b2-4d9818a10ec3
Feed Name: The Guardian – Data & Computer Security
Ofcom has banned UK mobile operators from leasing global titles—telecom signalling identifiers—after criminals misused them to intercept calls and SMS one-time codes; new leases are prohibited immediately, existing leases must cease by 22 April 2026, and Ofcom has issued guidance to prevent misuse, with NCSC endorsing the action and urging international alignment.
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