"We're working to solve the problem as soon as possible".
"It's a first big test for us against Saint-Etienne", said PSG coach Unai Emery.
They have also not spared websites like Variety, TechCrunch and BuzzFeed. The message would go on to appear and subsequently disappear over the next hour before the club security finally retook control of the account.
The Ligue 1 side added in a statement: "The club repeats that, along with Neymar Jr, it strictly respected all applicable laws and rules and can only regret, once again, the attitude of FC Barcelona".
Sadly for Barca fans, the Paulinho announcement last week was true.
Neymar's response is the latest move in an increasingly bitter war of words following his move to France.
The French report claims that the Spanish giants are in discussions with the Brazil international in the hopes of enticing him to the club.
Radamel Falcao has shone in Mbappe's absence, however, scoring five times in three matches ahead of Sunday's visit of Marseille.
Although the administrators of the Twitter account kept removing the tweets, the hacker group bypassed the security to repost the false announcement about Di Maria's signing into their team.
It also comes as Barcelona announced they are suing Neymar for £8m after alleging the Brazilian failed to fulfil his contract with the club.