An agreement to acquire another company called Postini - a company that serves solutions to online transactions and communication security. A protection to offer to companies and against malicious internet attacks . There are already thousands of business globally that is using their service.

According to google press release, and google blog, the deal will be around $625 million in cash. Some excerpt on the press release

Postini’s services — which include message security, archiving, encryption, and policy enforcement — can be used to protect a company’s email, instant messaging, and other web-based communications. Under the terms of the agreement, Google will acquire Postini for $625 million in cash, subject to working capital and other adjustments, and Postini will become a wholly-owned subsidiary of Google. The agreement is subject to customary closing conditions and is expected to close by the end of the third quarter 2007.

“With this transaction, we’re reinforcing our commitment to delivering compelling hosted applications to businesses of all sizes. With the addition of Postini, our apps are not just simple and appealing to users — they can also streamline the complex information security mandates within these organizations,” said Eric Schmidt, Chairman of the Board and Chief Executive Officer of Google.

Seems they are are now increasing the security measures of their system and their services through this acquisition. They want competitive and enhance and secured user experience.

You can read more about Postini on their site at http://www.postini.com/about_postini/index.php