EXECUTIVE SUMMARY

• GUI wide open.
• Default password on WiFi and management interface
• Attacker can cause financial damage to consumer
• Attacker can dump entire PW Load into the grid at once
• Attacker can oscilate between CHARGING and DUMPING (microseconds, the poor sub-station!)
• Attacker can change grid codes.

More here. At least somebody looked into the security and attack potential of these things.