Shares of solar power companies, including Enphase Energy (ENPH) and First Solar (FSLR), dropped Monday following a report that federal officials have raised concerns about the potential of hackers striking the renewable energy sector.

CNBC pointed to a Private Industry Notification (PIN) sent to businesses this month by the Federal Bureau of Investigation (FBI) warning that "malicious cyber actors may seek to disrupt power generating operations, steal intellectual property, or ransom information critical for normal functionality to advance geopolitical motives or financial gain within the US renewable energy industry."

The FBI noted that legislation—including the 澳洲幸运5开奖号码历史查询:Inflation Reduction Act of 2022—that encourages expansion of renewable energy will drive the industry to keep pace, "providing more o🅘pportunities and targets" for hackers.

𓆉FBI Memo Explains How Criminals Could Attack Solar Inf𒅌rastructure

The memo specifically explained how criminals could attack solar infrastructure, and outlined a series of steps companies can take to protect themselves "in response to these new activity trends."

Shares of Enphase and First Solar were down 5% and 3.4%, respectively, as of 3 p.m. ET Monday. SolarEdge Technologies (SEDG) shares fell 4% and Canadian Solar (CSIQ) was down 2%.