Frontier Communications revealed that a cyber attack on April 14 resulted in a data breach, and the information of more than 750,000 customers, including full names and social security numbers, was exposed. The hackers claim to have more and will release it unless Frontier pays a ransom.
The attack allowed hackers to access the personal data of 751,895 customers on Frontier’s systems, according to a sample notification filed by Frontier with the Maine Attorney General’s Office. Frontier has notified affected customers and is offering them free credit monitoring and identity theft services for a year, but said it “does not believe” customers’ financial information was exposed in the breach.
Computer beeps The RansomHub ransomware group reportedly claimed responsibility for the attack on June 4 and threatened to leak 5GB of allegedly stolen customer data unless Frontier responded to their demands by June 14. The group claimed that the stolen data set contained information belonging to 2 million Frontier customers, including their full names, physical addresses, dates of birth, Social Security numbers, email addresses, credit scores and phone numbers.
Frontier said it stepped up its cybersecurity after the attack and notified regulators and law enforcement. The company was forced to shut down some systems to contain the incident, according to a securities filing.