Dive Summary:

• Hackers installed malicious software on Telvent's network and gained access to its OASyS SCADA system, which integrates utilities' corporate networks with control systems used to manage electricity and communicate with the smart grid.
• The breach represents a potentially larger threat, if hackers were able to embed malicious software that could spread to the computers of vendors and customers.
• Other scenarios could include hackers accessing customer control systems or sabotaging programs with altered program files.

From the article:

The maker of an industrial control system designed to be used with so-called smart grid networks disclosed to customers last week that hackers had breached its network and accessed project files related to a control system used in portions of the electrical grid.

Telvent, which is owned by Schneider Electric, told customers in a letter that on Sept. 10 it learned of the breach into its network. The attackers installed malicious software on the network and also accessed project files for its OASyS SCADA system, according to KrebsOnSecurity, which first reported the breach. ...