Harry mencionou Horcruxes em público antes do Lorde das Trevas morrer.

Embora não esteja claro se a notícia se espalhou, Harry menciona Horcruxes na frente de uma multidão em Hogwarts.

“Nobody,’ said Harry simply. ‘There are no more Horcruxes. It’s just you and me. Neither can live while the other survives, and one of us is about to leave for good …”
_{^{- Harry Potter and the Deathly Hallows, Chapter 36 (The Flaw in the Plan)}}

Harry disse que em frente a uma multidão silenciosa e assistindo, é possível que eles ouvissem e lembrassem.

“The crowd was afraid, and silence fell abruptly and completely as Voldemort and Harry looked at each other, and began, at the same moment, to circle each other.

‘I don’t want anyone else to try to help,’ Harry said loudly, and in the total silence his voice carried like a trumpet call. ‘It’s got to be like this. It’s got to be me.”
_{^{- Harry Potter and the Deathly Hallows, Chapter 36 (The Flaw in the Plan)}}

O Profeta Diário diz que existe uma profecia e provavelmente sobre Harry.

“Though Ministry spokeswizards have hitherto refused even to confirm the existence of such a place, a growing number of the wizarding community believe that the Death Eaters now serving sentences in Azkaban for trespass and attempted theft were attempting to steal a prophecy. The nature of that prophecy is unknown, although speculation is rife that it concerns Harry Potter, the only person ever known to have survived the Killing Curse, and who is also known to have been at the Ministry on the night in question. Some are going so far as to call Potter the ‘Chosen One’, believing that the prophecy names him as the only one who will be able to rid us of He Who Must Not Be Named.”
_{^{- Harry Potter and the Half-Blood Prince, Chapter 3 (Will and Won’t)}}

O arrombamento no Ministério é relatado no Profeta Diário.

É mencionado no Profeta Diário que a razão pela qual o Ministério de repente admitiu que o Lorde das Trevas havia retornado foi porque houve uma invasão lá.

“Details of the events that led to the Ministry turnaround are still hazy, though it is believed that He Who Must Not Be Named and a select band of followers (known as Death Eaters) gained entry to the Ministry of Magic itself on Thursday evening.”
_{^{- Harry Potter and the Order of the Phoenix, Chapter 38 (The Second War Begins)}}

Parece não haver menção de outros exemplos de narração pública de suas aventuras, mas alguns detalhes eram conhecidos de qualquer maneira.

Enquanto Dumbledore apenas contava a Harry sobre as Horcruxes, e Harry apenas disse a Ron e Hermione, Harry os referiu publicamente em seu último duelo com Voldemort:

"There are no more Horcruxes. It's just you and me. Neither can live while the other survives, and one of us is about to leave for good."

Quando se trata da profecia, Dumbledore assegurou a Harry no começo de O Enigma do Príncipe que eles são as duas únicas pessoas que ouviram seu conteúdo completo:

"There are only two people in the whole world who know the full contents of the prophecy made about you and Lord Voldemort, and they are both standing in this smelly, spidery broom shed.

No entanto, o público foi capaz de adivinhar mais ou menos sobre a profecia, como o próprio Dumbledore confirmou em suas próximas palavras:

It is true, however, that many have guessed, correctly, that Voldemort sent his Death Eaters to steal a prophecy, and that the prophecy concerned you.

E, é claro, ao longo do restante da série, há referências constantes a Harry sendo possivelmente o Escolhido, sejam artigos do Profeta Diário, sussurram nos corredores de Hogwarts, Slughorn fala sobre isso. em sua festa no trem, etc.

Os eventos no Ministério da Magia no final da Ordem da Fênix em torno da profecia foram relatados no Profeta Diário :

Details of the events that led to the Ministry turnaround are still hazy, though it is believed that He-Who-Must-Not-Be-Named and a select band of followers (known as Death Eaters) gained entry to the Ministry of Magic itself on Thursday evening.

Os eventos na Câmara Secreta foram narrados em um escritório repleto de Dumbledore, McGonagall e Sr. e Sra. Weasley:

Then he started telling them everything. For nearly a quarter of an hour he spoke into the rapt silence: He told them about hearing the disembodied voice, how Hermione had finally realized that he was hearing a basilisk in the pipes; how he and Ron had followed the spiders into the forest, that Aragog had told them where the last victim of the basilisk had died; how he had guessed that Moaning Myrtle had been the victim, and that the entrance to the Chamber of Secrets might be in her bathroom....

Embora teoricamente ninguém mais devesse saber o que aconteceu, encontramos em Ordem da Fênix que pelo menos alguns rumores se espalharam:

"And did you kill a basilisk with that sword in Dumbledore’s office?” demanded Terry Boot. “That’s what one of the portraits on the wall told me when I was in there last year..."

Enquanto Terry menciona especificamente que um retrato lhe dizia, é possível que o retrato também contasse a outras pessoas, ou que os rumores tivessem se espalhado de outra maneira. Como Dumbledore disse tão eloqüentemente no final de Philosopher's Stone :

What happened down in the dungeons between you and Professor Quirrel is a complete secret, so, naturally, the whole school knows.

Em outras palavras, eventos espetaculares em Hogwarts tendem a ser divulgados de alguma forma.