I don't know how you found out about the Stone, but rest assured, no one can possibly steal it, it's too well protected.In 1991, the Philosopher's Stone became the target of the Dark Wizard Lord Voldemort in his quest for the Elixir of Life in order to create a new body for his mangled soul after his failed attack on Godric's Hollow, though it is unknown how Voldemort learned of the stone. Voldemort used a human host, Quirinus Quirrell, to seek it out at Hogwarts School of Witchcraft and Wizardry, where it was being held. The stone was originally stored at Gringotts Wizarding Bank in Vault 713. However, possibly suspecting a threat, Albus Dumbledore had Rubeus Hagrid retrieve the stone the very morning of an attempted robbery. After that, the Stone was placed in a special chamber and guarded by seven enchantments and creatures, provided by the professors at Hogwarts: Professor Sprout's web of Devil's Snare; Winged Keys, charmed by Filius Flitwick; a life-size board of Wizard's Chess, transfigured and animated by Professor McGonagall; Professor Quirrell's mountain troll; Professor Snape's Potion riddle; and the Mirror of Erised, placed there by Albus Dumbledore. Rubeus Hagrid's massive three-headed dog, Fluffy, guarded the trap door through which the chamber lay. In order to keep them safe from Fluffy and the other obstacles, Dumbledore forbade the third-floor corridor to all students.
Harry Potter and his best friends Ron Weasley and Hermione Granger suspected that the stone would be stolen. In overhearing out-of-context conversations, they believed the thief would be Hogwarts Potions Master Severus Snape. Harry felt compelled to protect the stone and he and his friends, using intellectual power and heroism far exceeding their years, fought past the obstacles, until finally Harry was forced to face Quirinus Quirrell and Lord Voldemort himself. In the final showdown, Quirrell lost his life, and Lord Voldemort lost his meagre hold on the physical world once again. After securing the stone, Albus Dumbledore and Flamel discussed its future, and agreed that it was best to destroy it. Flamel ensured he had enough remaining elixir to set his affairs in order before he and his wife would ultimately die, a fate with which they were quite content. According to Dumbledore, their deaths would be like "going to bed after a very, very long day", after living for over 660 years.