<div dir="auto">Thanks for the reference Jason.  I only have 2 EG4 18k systems in the wild, one of which I've been promised a hardware upgrade for over a year now (to fix inverter shut offs due to relatively small imbalanced loads).<div dir="auto"> </div><div dir="auto">Not being up on cyber security, I only vaguely understand what is being warned. As best as I can make out, the recommendation is to put the system behind a robust firewall and only access it via an up-to-date VPN and only with continual monitoring or remove it from internet connectivity altogether. <div dir="auto"><br></div><div dir="auto">If anyone can put the warning into a format that those of us without cyber training can understand, it would be very much appreciated. </div><div dir="auto"><br><div dir="auto">Thanks, </div><div dir="auto">Howie</div></div></div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sat, Aug 9, 2025, 2:30 PM Jason Szumlanski via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">In case you have not seen it:</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><a href="https://www.cisa.gov/news-events/ics-advisories/icsa-25-219-07" target="_blank" rel="noreferrer">https://www.cisa.gov/news-events/ics-advisories/icsa-25-219-07</a><div><br></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><br>Jason Szumlanski<div><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Principal Solar Designer | Florida Solar Design Group</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">NABCEP Certified Solar Professional (PVIP)</span><br style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px"><span style="color:rgb(51,51,51);font-family:Roboto,RobotoDraft,Helvetica,Arial,sans-serif;font-size:13px">Florida State Certified Solar Contractor CVC56956</span></div><div><font color="#333333" face="Roboto, RobotoDraft, Helvetica, Arial, sans-serif">Florida Certified Electrical Contractor EC13013208</font></div></div></div></div><br></div></div><img width="0" height="0" alt="" style="display:flex" src="https://mailtrack.io/trace/mail/0fa318943010dbb4a8f4f7ebc09e7e61f84cfc0f.png?u=1613865"></div>
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