Although lying on a CV is not illegal, it can damage a candidate's future employment prospects, an expert has advised. Lying on a CV is not illegal, but doing so can badly damage a person's future employment potential if it is detected, an industry expert has explained. Peter Panayotou, senior consultant at the Write Stuff, made his comments following the publication of a Chartered Institute of Educational Assessors study which found around one-third of UK adults have told untruths on their CV in a bid to secure employment.