As malicious groups continue to become more sophisticated in their hacking techniques, cybersecurity efforts are attempting to expand in their reach, and that is leading to some consolidation in the field. Today, cybersecurity firm Proofpoint — which provides SaaS products to protect businesses’ email, social media and other services — announced that it would pay $100 million to acquire Cloudmark, another firm that provides security protection for messaging services, focusing specifically on serving the ISP and mobile carrier markets.

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