A national paper had to pull some of its editions after wrongly identifying a man as the so-called "Lotto rapist".
Hoare is understood to have been released under a life licence
Iorworth Hoare, 52 and originally from Leeds, won £7m on Lotto Extra in 2004 and was released from jail in March.
A Sunday Mirror article claimed to show Hoare "on the loose" on a UK seafront, but used pictures of the wrong man.
The paper put a new lead on most other first editions after realising its error, a Sunday Mirror spokesman said. He would not comment further.
Hoare had been serving life after being convicted of attempted rape in 1989 and is understood to have been released on strict conditions under a life licence.
He was also jailed several times for a string of sex attacks, including rape, during the 1970s and 1980s.
The Sunday tabloid alerted the BBC about its mistake on Saturday night so that it would not use the incorrect report in its newspaper reviews.
It is thought the first editions displaying the wrong picture reached a few parts of Britain, including the central England and Tyne Tees areas, the spokesman explained.
A total of 95% of the first editions were recalled or changed, he said.