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--- a/content/roadmaps/101-backend/content/111-web-security-knowledge/100-md5.md
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-# Md5
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+# MD5
+
+MD5 (Message-Digest Algorithm 5) is a hash function that is currently advised not to be used due to it's extensive vulnerabilities. It is still used as a checksum to verify data integrity.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://pl.wikipedia.org/wiki/MD5'>Wikipedia - MD5</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.techtarget.com/searchsecurity/definition/MD5'>What is MD5?</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://infosecscout.com/why-md5-is-not-safe/'>Why is MD5 not safe?</BadgeLink>