Thousands of phone users wrongly billed following 'spoofing' malware attack

Kaleyra pleads guilty to 22 offences whereby 9,500 customers were incorrectly charged for premium rate services

Kaleyra admitted it did not have an adequate refund mechanism or security to prevent the malware attack, which led to the massive spike in faked subscriptions.

More than 9,000 phone users were wrongly charged up to €520,000 for premium rate services following a “spoofing” malware attack, a court has heard.

Premium service aggregator Kaleyra UK Ltd pleaded guilty at Dublin District Court on Monday to 22 offences under the Communications Regulation (Premium Rate Services and Electronic Communications Infrastructure) Act 2010.