On Saturday, Vodafone UK said that hackers acquired the private information of 1,827 of its customers. As reported by Venture Beat, This marks the second cyber attack on a British telecoms company during the month of October.

According to a Vodafone spokesman, the hackers allegedly gained access to victims bank sort codes, as well as the last four numbers on their bank accounts. The information that was stolen has the potential to allow hackers to steal the identities of their victims. Additionally, names and mobile telephone numbers were accessed, permitting the hackers to use them as they see fit.

“This incident was driven by criminals using email addresses and passwords acquired from an unknown source external to Vodafone,” the spokesman said in a statement.

Since the Thursday morning attack, only a small amount of those affected have reported hacking attempts on their Vodafone accounts. A Vodafone spokesman issued a statement pertaining to the information that was stolen by the hackers.

“No credit or debit card numbers or details were obtained. However, this information does leave these 1,827 customers open to fraud and might also leave them open to phishing attempts,” the Vodafone spokesman said on Friday.

The company is in the process of contacting all those involved in the hacking attempt. Vodafone has made it clear that customers who were not involved in these attacks need not be concerned.

A similar attack was made against broadband, TV, mobile and fixed-line provider TalkTalk. The attacks potentially put the private details of its 4 million customers into the hands of the hackers.

Two teenagers have been arrested in connection with the attack on TalkTalk. The company has announced that less than 21,000 bank account numbers and sort codes had been accessed.