An attack on remote monitoring devices in Japan underscores an emerging cybersecurity threat to the rapidly growing solar component of the power grid. Inverters used with solar panels could pose a more significant risk. In what might be the first publicly confirmed cyberattack on the solar power grid infrastructure, Japanese media recently reported that malicious actors hijacked 800 SolarView Compact remote monitoring devices made by industrial control electronics manufacturer Contec at solar power generation facilities to engage in bank account thefts.