One in five French women admits they have secretly taken a sneak peek at the mails, texts or facebook accounts of their boyfriends or husbands.
But only 16 percent of French men have admitted to spying on their spouses, according to a poll for web portal Yahoo.
Libération writes that these differences might show that women feel more insecure, men more confident, or that it simply reveals women aren't afraid to admit that they monitor their boyfriend or husband.
Only 15 percent of those who spy on their partner say they have done so repeatedly, 24 percent say they have done it once.
The poll also shows that older couples trust each other more than younger couples.
More than half the interviewees aged 15 to 25 years say they violate their partner's privacy to find out whether he or she is faithful. However, couples over the age of 50 say spying on one’s partner is the worst them one can do.