Security researchers at software maker MessageLabs contend that malware writers, hackers and other cyber-criminals are combining multiple forms of IT threats in an attempt to amplify their efforts. In the company’s latest IT security intelligence report, MessageLabs experts said that criminals are converging their attacks across multiple communications channels, such as e-mail, instant messaging networks and Web sites, and are also pulling together information-gathering techniques, including spyware, spam and phishing schemes, as they seek new ways to menace businesses and consumers. The company said that 64.8 percent of all worldwide e-mail traffic consisted of spam in June, representing a 6.9 percent increase over May’s totals.