While Mrs Teo said website blocking is part of upstream measures ... They will often try to appear more credible by spoofing local numbers. Telcos block around 15 million suspicious incoming ...

The website was linked to the theft of at least ... Through his online phone number spoofing service iSpoof, Fletcher provided tools for rent that were used in intricate financial scams.

Jimmy Fallon trotted out the spoof ad for the July event in Wisconsin after the RNC was found to be using an image of Vietnam’s Ho Chi Minh City instead of Milwaukee on the convention website.