Police in England made a third arrest in the alleged theft of millions of digital records from communications company TalkTalk, taking a 20-year-old man into custody.
Previously a 15-year-old boy from Ireland and a 16-year-old boy from London were arrested in the case. Both of those boys were released on bail.
On Sunday (GMT), the 20-year-old was arrested in the county of Staffordshire, in the West Midlands of England, by Metropolitan Police on suspicion of violating the Computer Misuse Act. The other two arrested in the case face the same suspicion under the same offense.
This month, upwards of four million email addresses, names and phone numbers along with bank details were accessed by hackers during a security breach at TalkTalk, which provides pay television, telecommunications, internet access, and mobile network services to businesses and consumers in the U.K.
The BBC news reported Sunday that the number of records stolen has been scaled back to 1.2 million.
TalkTalk continues to have a message on its homepage that reads: "We're currently making security enhancements to our site, which should be back online soon."
The company announced in early October that its website had been the victim of a "significant and sustained cyber-attack." It was the third cyber attack the service provider has suffered within the last year.
Customers have reported that their stolen information is being used in scams designed to lure consumers into handing over valuable details that can be used to empty bank accounts.