Read back through the thread. In short, this old version of cgminer has security vulnerabilities, worst of which is the "stratum redirect" - where a third party can steal your hashes & point them at a pool of their choice. It and all other miners were patched very quickly - but Bitmain have refused to upgrade it for some (strange?) reason, despite promising to do so 7 weeks ago.

It's as phoney as your cryptocoin SEC statement......