Yahoo-Tumblr deal is a goer

Yahoo's beleaguered board has written a rumoured $1.1 billion cheque to buy the social blogging site Tumblr.

Twitter, Tumblr and Pinterest users hit by data breach

Data on an unknown number of Twitter, Tumblr and Pinterest users is at risk after customer service software provider Zendesk was hacked.

Tumblr cleans up after hack

Thousands of Tumblr users have been inundated with spam, following a worm launched by hacking group GNAA.