This is intended as an informal session for short and engaging presentations on recent unpublished results, work in progress, or other topics of interest to USENIX Security attendees. As in the past, talks do not always need to be serious and funny talks are encouraged! This year, USENIX will generously sponsor awards for the most engaging talks. Bragging rights and small cash prizes can be yours for a great talk! For full consideration, submit your lightning talk via the lighting talk submission form through July 27, 2018. Only talks submitted by this deadline will be considered for the awards. You can continue submitting talks via the submission form or by emailing sec18lightning@usenix.org until Wednesday, August 15, 2018, 12:00 pm EDT.