The research team, led by Wang Chao from Shanghai University, found that D-Wave’s quantum computers can optimize problem-solving in a way that makes it possible to attack encryption methods such as RSA.
Paper: http://cjc.ict.ac.cn/online/onlinepaper/wc-202458160402.pdf
Follow up to https://lemmy.ca/post/30853830
This is why perfect forward secrecy is mandatory even if you have quantum encryption on your VPN.
As for file storage, even if it’s quantum resistant, we may see a time in the future where you need to periodically re-encrypt your files to keep them a little bit less in danger