Should a user ID be a secret
31395
Exposing database IDs - security risk?
124072
Do I need to disclose my affiliation on non-promotional, technical answers on my project
115301
Can I Prevent Enumeration of Usernames?
11297
AdSense | Get verification for a 'secret' blog
74890
Is it worth encrypting email addresses in the database?
58684
Best Practices in Username Standards: Avoiding Problems
120051
Can secret URLs be used to protect files?
31352
Is it safe to give out one's bank account number?
80042
Automatically provide unique id in the database
61677
set session - custom variable to store user id
138664
Surfing the web anonymously
34466
Encrypt IDs in URL variables
85575
How to prevent user registration
141588
How to get an anonymous user session id?
11140
How bad is publishing the app secret really?
77690
Who is the person using a SQL login?
30157
How do I hide a particular user from the login screen?