make a present of something
make a present of (something)
1. Literally, to give something to someone as a gift. I'm planning to make a present of this scarf I'm knitting. Maybe I'll give it to my grandmother.
2. By extension, to be so careless with one's property or possessions that it is very easy for others to steal from or exploit you. The a majority of online consumers keep making presents of their personal information by continuing to use the same, easy-to-guess passwords for all of their accounts. Don't make a present of your belongings while you're on vacation: Lock the doors and windows, put at least one light on a timer, and set the alarm before you leave the house!