!!! Overview[1]
[{$pagename}] is a term used for [SHA-1] having a [Cryptographic Collision]

[Cryptographic Hash Functions] like [SHA-1] are a cryptographer’s swiss army knife. 

[Cryptographic Hash Functions] play a role in [browser] security, managing code repositories, or even just detecting duplicate files in storage. [Cryptographic Hash Functions] compress large amounts of data into a small [Message-Digest]. 

As a [cryptographic] requirement for wide-spread use, finding two messages that lead to the same [Message-Digest] should be computationally infeasible. Over time however, this requirement can fail due to attacks on the mathematical underpinnings of [Cryptographic Hash Functions] or to increases in computational power.!! More Information
There might be more information for this subject on one of the following:
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* [#1] - [Announcing the first SHA1 collision|https://security.googleblog.com/2017/02/announcing-first-sha1-collision.html|target='_blank'] - based on information obtained 2017-02-23