In a tribute to Aaron Swartz, the cyber activist who committed suicide this month, hackers took down MIT’s website for an hour on Tuesday.

Outside viewers who visited MIT’s Web domain between 11:58 a.m. and 1:05 p.m. saw a black page with white text reading, “R.I.P. Aaron Swartz, Hacked by grand wizard of Lulzsec, Sabu.” The student newspaper, The Tech, reported the outage — at least the second time in the past month that MIT has been hacked.