»ThreatMetrix, a San Jose, Calif.-based provider of cyber crime prevention solutions, has acquired Sydney, Australia-based TrustDefender, which provides browsing technology to help stop malware. The combined companies will offer online fraud management solutions.

»Cupertino, Calif.-based Voltage Security, a provider of data-centric encryption and key management, has partnered with Paris-based Ingenico, a provider of payment solutions, to combat card fraud via encryption at the point-of-sale.

»Dallas-based Epsilon, a marketing services firm that sustained a massive breach last year, has announced the appointment of two security industry veterans to its team. Keith Morrow has joined as EVP and chief information officer, and Chris Ray (left) has joined as chief information security officer. Morrow, formerly CIO at Blockbuster and 7-Eleven, will be responsible for the company’s global IT structure, overseeing more than 200 technology pros, while Ray, will have enterprise responsibility for information security and regulatory compliance. This is the first time Epsilon has filled these positions.

»John Streufert (right), former CISO and deputy chief information officer for information assurance at the U.S. Department of State, has taken a new position as the director of the National Cyber Security Division at the U.S. Department of Homeland Security. He will be working on similar project initiatives at his new post.

»Solutionary, an Omaha, Neb.-based provider of managed security services, has appointed Rob Kraus (left) as director of SERT (Solutionary Engineering Research Team). This department analyzes threats, publishes reports and sends out alerts about the latest attacks. Kraus was formerly at Digital Defense, AT&T and Nortel.

»Internet Security Alliance President Larry Clinton (right) has been elected chairman of the Information Technology Sector Coordinating Council (IT SCC). He had been serving as vice chairman at the council, which works on behalf of companies and associations in the IT industry to coordinate initiatives and to lobby, on behalf of the sector, for infrastructure protection, response and recovery. IT SCC works with ISACs in public-private partnerships under the Department of Homeland Security’s National Infrastructure Protection Plan.

»Symplified, a Boulder, Colo.-based provider of on-premises or in-the-cloud identity and access management, has raised $20 million, led by Seattle-based venture capital firm Ignition Partners, which will be used to expand operations, support, and research and development to meet the increasing demand for the company’s cloud services.

»Salt Lake City-based Solera Networks, a network security analytics provider, has announced it has secured $20 million in financing led by Intel Capital, the Santa Clara, Calif.-based venture capital arm of semiconductor chip maker Intel. The new funds will be applied to expanding global sales, marketing and product development projects.

»Guidepost Solutions, a New York-based global investigations and security company, has announced the appointment of Dan O’Donnell as president of the firm’s Technology Design Consulting division. O’Donnell previously served for more than 30 years at IBM in a number of senior management and legal positions. He will be charged with helping the company’s clients address their technology and security needs with cost-effective solutions.