The mobile operator said hackers had compromised data for 7.8mn postpaid customers, 850,000 prepaid customers, and 40mn records for former or prospective customers.
An underground forum was used to advertise the sale of personal data that hackers claim to have stolen from T-Mobile servers.
Cybersecurity professionals are cogently arguing for more funding but sometimes have a biased approach towards limiting risk.
Never mind somebody else’s fact-free opinions about data security, because here is the leading source of data about data security.
Academics from Princeton found more than half the numbers they obtained could be linked to personal data about former users.
An analysis of stock market data by Comparitech shows there is no simple equation for reputation damage, but telecoms has more to lose than other sectors.
SpyCloud identifies vulnerable online accounts by checking them against their library of compromised credentials.
More data breaches are caused by mistakes than malware, says the Verizon 2020 Data Breach Investigations Report.
Though no financial data was compromised, there will be an increased risk of account takeovers.
The telco denied customer passwords were compromised but seemingly this is because the passwords were encrypted. Security researchers have questioned the strength of the encryption.