Is AES 256 breakable?

Related questions

1. Which is faster AES or DES?
2. Why is AES faster than DES?
3. How does 128 bit encryption work?
4. What is AES cryptography?
5. What is key and secret?
6. Can the government crack AES 256?
7. How is a private key sent?
8. What is the difference between Rijndael and AES?
9. How does private key signing work?
10. Is AES safe?

Tags

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2. #recently
3. #there
4. #abstract
5. #known
6. #which
7. #exhaustive
8. #attack
9. #respectively
10. #breakable
11. #shown
12. #block
13. #search
14. #cipher
15. #complexity
16. #however
17. #faster
18. #widely
19. #require