DES

DES may mean:

Data Encryption Standard, a deprecated cryptographic block cipher that falls to brute force attacks due to its short 56-bit key
Diethylstilbestrol, a synthetic estrogen developed to supplement a woman’s natural estrogen production
Drug-eluting stent, a device placed in coronary arteries to treat or prevent heart attacks
Diffuse esophageal spasm, a condition resulting from a disorder of the esophagus