One outraged fan has taken to Twitter and claimed the photos come from Harry's mother, Anne Cox's phone.
They wrote: "Which account hacked Anne's iCloud? Who do I have to fight? GIVE MY BOYS AND THEIR FAMILES SOME PRIVACY"
Whilst another agreed with the sentiment and penned: "How disrespectful can you get? Hacking into Anne's iCloud..have some respect for people's privacy and personal life. So rude."
Some have even quit the site in protest.
One declared: "At the whole Anne's iCloud getting hacked...I didn't need to see those damn pictures of Kendall and Harry...like goodbye."
And another wrote: "due to the release of these leaked Harry styles photos I have to take a temporary leave from Twitter... bye y'all(sic)" with a string of marching men emojis."
A person - who goes by the Twitter username @haarrystyles - has come forward to claim responsibility for hacking the account and claims to have access to the Harry's fresh solo music.
They also confessed they were willing to go to prison in return for leaking the private images.
They said: "IF I go to jail I did this for all the Harry STANS who don't get s*** from Harry"
- BANG! Showbiz