Acquisition by Spectrum Equity Investors, a subsidiary of Spectrum Equity Management of a majority stake in Offsec Services, a Gibraltar-based provider of information security training, ethical hacking certifications, virtual labs, and penetration testing services, from the company's founders. Financial terms were not disclosed. “Offensive Security’s unique online training courses develop hands-on penetration testing skills, and this gives its certifications unmatched credibility,” said Adam Margolin, Managing Director at Spectrum Equity. “The company was created by the community for the community, and we are excited to continue this mission going forward.”