Northern Ireland Police Arrest 15-Year-Old for TalkTalk Hack

  • Put in custody on `suspicion of Computer Misuse Act offenses'
  • TalkTalk: Attacker may have stolen banking information

A 15-year-old boy in Northern Ireland has been arrested in connection with the attack on British Internet provider TalkTalk Telecom Plc, authorities said. The shares rose, recovering from the worst decline in five years on Monday.

The teenager was taken into custody in County Antrim on Monday on “suspicion of Computer Misuse Act offenses,” the Metropolitan Police said in a statement.

TalkTalk, a provider of broadband and TV packages, was hit last week by a “significant and sustained” attack on its website. The company later received a ransom demand from attackers it didn’t identify, who wanted payment in exchange for relinquishing customer data. TalkTalk said Saturday that the attacker probably gleaned less financial information than initially thought, but announced Monday that some banking information, such as account numbers, may have been stolen.

“We are still working with the police and our external cyber security experts to investigate the exact circumstances of the attack and the extent of the information accessed,” TalkTalk said in a statement Tuesday.

The company said it doesn’t store complete credit-card details on its website. Any card details would have concealed some numbers and aren’t therefore usable for financial transactions, it said. Account passwords weren’t accessed, TalkTalk said.

TalkTalk shares gained 10 percent in London trading to 247.90 pence at 9:30 a.m. The stock had plummeted 12 percent on Monday, the worst decline since 2010.

T-Mobile US Inc., Dixons Carphone Plc and Sony Corp. are among companies that also have sustained hacking attacks in the past year. Adultery website AshleyMadison.com was hit in July, and the perpetrators ended up releasing information they said included details of more than 36 million users including full names, e-mails and banking information.

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