TalkTalk says police are investigating a "significant cyber-attack" on its website in which customer bank and credit card details may have been accessed.

Internet marketplace giant Amazon reports a surprise profit for the second quarter in a row thanks largely to higher sales in the US.

Alphabet the new parent company of Google, reports profits up almost 50% for the third quarter.

Twitter chief executive and co-founder Jack Dorsey to give a third of his shares in the firm to employees.

The head of TalkTalk says she is "very sorry" after personal details of up to four million customers were accessed by hackers in a major cyber-attack.

Find out how to protect yourself in the wake of the big cyber-attack on telecoms provider TalkTalk.

How do the UK's YouTube stars export their content around the world so successfully? And are they taking over from traditional celebrities?

Social network Facebook has indexed billions of posts made by its members to make them easier to find by searching.