A TikToker has gone viral after sharing a simple hack to find out if your partner is being unfaithful - and not everyone is sold on it.
A user with the handle @aurielouisse posted a video in which she opens the sun visor on the passenger side of her boyfriend's car and slides the mirror so that it is halfway open.
The post was captioned: "How to know if he’s seeing someone LOL, #hack."
Watch the video below:The idea is that if the visor mirror has been used by another person, that person will most likely close it when they're done with it, which supposedly suggests that the partner of the person in the driver seat is being cheated on.
The video has since racked up over 4 million views, more than 217,000 likes, and over a thousand comments.
It has proved quite divisive, with some believing it to be a clever hack but a majority slamming the trick as deceitful and intrusive.





One person argued: "1. Boys use mirrors too 2. His mom or sister or someone from his family could’ve used it 3. He might of [sic] used it 4. If u can’t trust him then break up."
Another said: "If there is no trust, there is no relationship."
A third commented: "It's his car 2. If there's no trust no relationship. 3. Did you know some mothers use the mirrors in their child's car."
A fourth wrote: "I'm a boy and I use the mirrors. And also while you're driving, it can shift back closed."
A fifth shared: "What ever [sic] happened to trust? Or if you have that much of an issue, just talk to him. If you can't simply ask then there's something wrong."
What are your thoughts on the hack? Does it show a lack of trust in the relationship or is it a genius tip for those of us who suspect our other halves of infidelity? Let us know in the comments!