This morning I've been getting email messages from people - some in my address book, some not - who have received empty emails from me overnight.
I know enough to know that this sounds like a hack attack, but I don't know enough about what to do with this issue.
I run Integeo VirusBarrier X6 and MacScan for security.
Here is my sys-info:
Model: iMac 21.5, Mid 2011
Processor 2.7 GHz Intel Core i5
Memory 4 GB 1333 MHz DDR3
Graphics AMD Radeon HD 6770M 512 MB
Software Mac OS X Lion 10.7.4 (11D50d)