Is it permissible to treat information published on the Internet as reliable, especially when quoting and re-publishing? Is it sufficient to assume that a site is trustworthy? What is the ruling on quoting from personal blogs that include the phrase "all rights reserved"?

A Muslim should be careful when transmitting information and verify its authenticity, for the Prophet, peace and blessings be upon him, said: "It is enough a lie for a man to speak of everything he hears." If the information is most likely authentic, then it is permissible to spread it, because "the predominant takes precedence, and the rare has no ruling," and "the prevailing assumption is treated as certainty."

However, anything whose owners stipulate the preservation of their rights may not be disposed of except with their permission, as this constitutes an infringement on their intellectual property rights, whether the owner of the right is a Muslim or a non-belligerent disbeliever. Jurists have used as evidence for this the Hadith (definition): "Muslims are bound by their conditions," and "The wealth of a Muslim person is not lawful except with his willing consent," and "Whoever precedes to a permissible thing has more right to it."