Hi, have you ever thought this?
You know that, to import a wallet you need the private key or your seed. Taking as example the private key (the 52 letters key). It could exist the possibility someone create a software whose function was to try thousands of times to find the private key till it is be done.This would be like the process to find the new block in mining, anyway you can try the times you want in order to find it.
I think this could be a weakness, correct me if I am wrong.

Or comment if you have a kind of solution for this...
Regards!
No this is not possible.Or let'S say the chances for a collusion are ridiculously small. If it would be so easy, Bitcoin wouldn't have functioned from the beginning, trust me. I recommend you to take a deeper reading into how public-key cryptography or asymmetric cryptography works.
And never forget that Bitcoin is out there, in the wild open internet, with all it's dangers and threats since more than 9 years now without ever being offline!!
There are hundreds or even thousands of people worldwide, who are contributing to the core protocol and looking for ways to improve it if there is a possibility.
Let´s take this specific example...
Let´s say you want to steal the wallet of someone else and move it to your B.info wallet. The website in B.info ask you for the private key or QR code. You could develop a program which would try by thousands of tries to "guess" the private key. By somehow you connect that program to B.info website and this one would try to find that private key.