This is even more serious if such unverified information is relating to Islam or Muslims.
Included in this is the habit of incorrectly quoting from the Noble Quran and the Hadith of Rasulullah (r).
Spreading unverified information about people is slander. This is even more serious when it involves Ulama who are being unjustly slandered. This is a major sin which carries a heavy penalty in the Hereafter.