Simplify the following text for a Grade 11 native English-speaking person.
Original: It has caused some controversy as it was claimed to have the potential to break the Advanced Encryption Standard ( AES ) cipherâ '' also known as Rijndaelâ '' faster than an exhaustive search .
Simplified: It has caused some argument as it was claimed it may break the Advanced Encryption Standard ( AES ) cipherâ '' also known as Rijndaelâ '' faster than a brute force attack .