We have been doing this chat for several years without fraudsters and people trying to cheat.
No, by default this chat has NO vulnerabilities. The problem is with most people, as they allow themselves the vulnerabilities, share access to their files and buy modifications, not even knowing how they work and whether they are vulnerable.
One thing is beautiful on the outside, but not nice on the inside - the motto of codychat.
When a person has a valid license, then in most cases everything is fine and we can do almost nothing.
No matter how much you write about a problem with a "stolen"