Is sha256 hash secure?

Related questions

1. Where are password hashes stored?
2. What is password hash and salt?
3. What hash does Linux use for passwords?
4. What makes a hash a hash?
5. What is the purpose of hashing?
6. How long is password salt?
7. Can sha256 Hash be reversed?
8. How a password is hashed?
9. What is md5 hashing algorithm?
10. Is hashing reversible?

Tags

1. #cryptographic
2. #created
3. #designed
4. #pbkdf2
5. #prefer
6. #stretching
7. #given
8. #usage
9. #sha256
10. #functions
11. #storage
12. #should
13. #derive
14. #function
15. #passwords
16. #actually
17. #properties
18. #password
19. #suitable
20. #secure