How risky is VPN?

VPN, or Virtual Private Network, has become increasingly popular in recent years, allowing users to browse the internet anonymously and access content that may be blocked in their region. But with this convenience, how risky is using a VPN? Are there potential security threats that users should be aware of? For instance, could a VPN be compromised, exposing sensitive information to hackers? Or are there privacy concerns surrounding the collection and storage of user data? As someone considering using a VPN, I'm curious to know the potential risks and how to mitigate them.