Kryptor is a thrash metal band from Prague formed in 1987. Their sound is shaped by influences from Slayer, Kreator and Metallica, with early work showing inspiration from Nuclear Assault. After many shows across Czechia and Slovakia, they disbanded in 1997 and later reunited in 2002. In 2004, original member Michal returned as vocalist. Their release Best of Fuck Off includes new songs and unreleased material.