Our sites are back up now.
Some time between 4:30am to 7:30am this morning, we believe our sites were compromised. We have identified the problem and it has been fixed. However, you will still be getting the malware warning pages through your browser for the next 24-48 hours. (It should be okay to ignore the warning page / proceed anyway). We are working with Google to have that removed.
In all cases like this, it is recommended that you have the latest updated anti-virus and anti-malware programs installed. Here are some of the programs we recommend:
MalwareBytes
Microsoft Security Essentials
Avast