Taylor Swift is the latest celebrity to be targeted by hackers, with the singer’s inoffensive Instagram and Twitter accounts falling victim to a series of unauthorised posts on Monday afternoon.

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The first sign of trouble came when Swift called for her Twitter followers to start following two accounts presumably belonging to the hackers.

Some of Swift’s fans immediately cottoned on to the illegal activity, calling for the hackers to abandon their offensive, while others simply demanded the hackers follow them from Swift’s account.

Next came some explicit posts on Swift’s Instagram account, including an image of a man squatting over a toilet.

The perpetrators appear to be an online group called the Lizard Squad, the same group who claimed responsibility for the Facebook and Instagram hacking that took place on Monday.

The group’s Twitter account tweeted a cryptic message on Wednesday in relation to the Swift hack, writing “lol @ Taylor Swift”.

The posts were quickly deleted, with Swift taking to her Tumblr page to address the incident.

“Twitter is deleting the hacker tweets and locking my account until they can figure out how this happened and get me new passwords. Never a dull moment,” she wrote.

A member of the group then threatened to release naked photos of the 25-year-old star, who responded on Twitter with trademark sass.

“Any hackers saying they have ‘nudes’? Psssh you’d love that wouldn’t you! Have fun photoshopping cause you got NOTHING,” she tweeted.