Is DEA Encryption Still Secure? Cracking the Old Standard

The Data Encryption Algorithm (DEA)—more commonly known as DES (Data Encryption Standard)—and the Advanced Encryption Standard (AES) are both symmetric block ciphers. However, AES is vastly superior, mathematically elegant, and secure, whereas DEA is obsolete and highly vulnerable to modern brute-force attacks.

The National Institute of Standards and Technology (NIST) deprecated DEA decades ago due to its short key length and replaced it with AES as the global encryption standard. Summary of Key Differences

DES vs AES: Key Differences Explained | PDF | Security Engineering