TalkTalk has been hacked yet again, and 4 million credit card profiles may have been stolen

British broadband provider TalkTalk has been hacked for the third time this year, the company announced late Thursday, and customers' data - including credit card details - may have been stolen.

In a statement, TalkTalk called the attack "significant and sustained." Up to 4 million customers may be affected, according to the Financial Times. The Metropolitan Cyber Crime Unit is now investigating.

Here's what customer data TalkTalk says may have been "accessed" - and presumably stolen:

• Names
• Addresss
• Dates of birth
• Email addresses
• Telephone numbers
• TalkTalk account information
• Credit card details and/or bank details

The company has around 4 million UK customers.

The BBC is reporting that TalkTalk's website was targeted by a DDoS attack - overwhelming servers with traffic. This on its own wouldn't give the attacker access to internal data, however.

The TalkTalk website is still unavailable; as of Friday morning, this is what users attempting to access their account see:

TalkTalk

TalkTalk has been hit with hack attacks before.

In a statement, TalkTalk said:

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