How was my crypto stolen ?

Hello everyone, I'm looking for advice here because I'm confused about what happened.

I had some MATIC on 2 different addresses of my Metamask wallet. However it turns out that 2 months ago they were all sent to a different address that I do not own. This really bugs me as I am sure that I haven't used Metamask in this period. My recovery seed is only written in a piece of paper in my house that no one has access to. Same goes for my Metamask password so even if someone logged into my computer they couldn't have done anything.

The picture above is a Polygon Etherscan screenshot of all the transactions from the address my money was sent to. One thing that confuses me is that there is a 6 day gap between my first wallet being emptied and the second one (circled in red, the other addresses are not mine).

It's only 16 MATIC so that's not much of a problem but I'm worried the same thing could happen if I were to transfer crypto to my wallet again. If anyone has any idea about what could have happened it will be very helpful ????

EDIT : Etherscan link for my first address : https://polygonscan.com/address/0x23687b0f74fea023688e782c6963c82bf81a3878

Second address : https://polygonscan.com/address/0xf4505cbb83116de23d0665a96259d8e1d616dfcc

Address my money was sent to : https://polygonscan.com/address/0x245415f1418a059bde2e03567a2325cada3fe3b6

https://preview.redd.it/enixe1i480nd1.png?1806&format=png&auto=webp&s=7d5039eddcf7836cf663ee158a2155da3b5ecb78