The "core" of a major terrorism trial can be held in secret however the defendants can be identified, the Court of Appeal has ruled.
Media organisations had contested the "unprecedented" decision by Mr Justice Nicol last month at the Old Bailey relating to the pending trial of two defendants only known as AB and CD.
Richard Whittam QC, for the Crown, said it supported open justice but there were exceptional circumstances which had led to exceptional procedures in the case.
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The Islamic centre where the Manchester suicide bomber is thought to have prayed says the attack "has no place in Islam or any religion".
German chancellor Angela Merkel and Indian prime minister Narendra Modi among those to praise "great spirit" of Manchester people.
The bomber's identity has been confirmed by Greater Manchester Police.