Shares of FireEye (FEYE) - Get Report are on the move Thursday, climbing more than 10% after the stock was upgraded to buy from hold at Goldman Sachs. 

The analysts didn't stop there, downgrading Proofpoint (PFPT) - Get Report to sell from hold too, TheStreet's Jim Cramer, manager of the Action Alerts PLUS portfolio, pointed out on CNBC's "Mad Dash" segment. 

Cramer has spoken to both companies' management teams on his "Mad Money" TV show and he enjoys the discussions because the industry is continually changing so much. 

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Proofpoint is an email protector, while FireEye is more of a post-hacking investigator, although it's working on adding different services as well. However, it appears that Goldman Sachs analysts now view the latter more favorably than the former. 

While Goldman may believe that FireEye is a buy, Cramer is not necessarily on board. Sure, it could be a takeover target or even rally to the $15 to $16 range without issue. 

But betting on a cybersecurity company is a bet against Cisco (CSCO) - Get Report , and seeing what Cisco has done to Palo Alto Networks (PANW) - Get Report makes that bet a concern. CEO Chuck Robbins has made cybersecurity a very big priority at Cisco and that could be bad news for its competitors, Cramer concluded. 

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At the time of publication, Cramer's Action Alerts PLUS had a position in CSCO.