An in-depth look at how scammers are manipulating caller ID data to impersonate trusted institutions like HMRC, local banks, and the NHS to bypass standard network blocks
Caller ID spoofing has evolved from a niche tactic to the primary vector for financial fraud in the UK. Scammers utilize sophisticated VoIP software to alter the outgoing caller ID, tricking victims and network filters alike.
Standard UK networks (EE, Vodafone) struggle to block these calls proactively because the numbers appear legitimate. Our unmasking infrastructure bypasses the spoofed metadata by analyzing the true origin of the incoming signal during the conditional routing, allowing users to reveal the actual VoIP node or burner number used by the scammer.
Source: MaskOff UK Internal Data Analytics
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