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There are thousands of secrets exposed on Docker Hub, ranging from harmless API keys to potentially harmful information.
This is according to researchers from theCybernews Research team, who recently analyzed 10,178 Docker Hub images.
From those 5,500 container images, the researchers pulled exactly 191,529 secrets.
Many were duplicates which, when removed, left the researchers with exactly 48,481 unique secrets.
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Ten thousand private keys used for encrypting or decrypting were also discovered.
While these numbers are staggering, those with an eye for detail can discover even more potent secrets.
Furthermore, there were almost 8,000 UnifyID secrets that could expose identity data.
The containers holding these secrets have been downloaded more than 132 billion times already.
“Leaving any secrets exposed while uploading your images online poses a high risk of threat actors finding them.
Most secrets, the researchers further explained, came from re-using packages with sensitive information.
Developers expose diverse hidden data types and a vast amount of sensitive data.