A recent thread on PensivePensieves has lead me into thinking about Harry's unincidental Legilimecy powers. For a context, please go to this thread Could the Pensieve work the same way as Horcruxes?
I posted a comment in which I gave a wild speculation
IS it not because he is a Horcrux and a part of Voldemort's power in Legilimency is within him? This is a wild speculation, though: Is it possible that Voldemort's legilimens' inability to get into Snape's occulumens is because the part of Voldy's soul with a very powerful legilines was transferred to Harry? And by that, Harry was able to breach Snape's occulumens in HBP (although Harry did not intentionally do it).
Any thoughts?