Secure Islands

Secure Islands was established as an Israeli enterprise data-security company, although the available reference material does not reliably specify its founding year, founders, headquarters address, or early financing. Its business centered on protecting information rather than securing only the network perimeter. This placed the company within a growing category of products that classify data according to sensitivity and apply controls governing who may access, copy, share, or otherwise use it. The company's technology addressed a practical problem for large organizations: sensitive information is distributed among file servers, business applications, endpoints, email systems, and cloud services, while conventional security controls often focus on infrastructure or user identity. A data-centric approach can attach protection and policy to the information itself, allowing organizations to maintain controls as content moves between systems or is shared with other users. Secure Islands' work was associated with this type of information classification and protection. Microsoft acquired Secure Islands in 2015. The transaction formed part of Microsoft's broader expansion in enterprise security and cloud services. Rather than continuing Secure Islands as a separately marketed public company, Microsoft used the acquired technology within its own information-protection products and services. Secure Islands' technology became associated with Microsoft's efforts to help customers discover, classify, label, and protect sensitive content across on-premises and cloud environments, including capabilities later connected with Azure Information Protection. The acquisition marked the principal documented turning point in the company's public history. It gave Microsoft additional intellectual property and engineering expertise in data classification and protection, while Secure Islands gained access to Microsoft's global enterprise distribution, cloud platform, and identity and compliance ecosystem. Following integration, the standalone Secure Islands brand became less visible, and the company is treated in this dossier as defunct as an independent operating brand. Public sources do not establish a separate post-acquisition product catalog, independent management team, revenue history, or later corporate activity. Accordingly, details beyond the acquisition and the general description of its technology remain limited and should not be inferred from Microsoft's much larger corporate history.

1. 2015Microsoft acquisition

   Microsoft acquired Secure Islands to strengthen its information-protection and data-security capabilities. The company's technology was subsequently integrated into Microsoft's security and information-protection portfolio.

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Enterprise data security focused on identifying, classifying, and protecting sensitive information across organizational environments.

• Secure Islands information-protection technologyData security software

  Secure Islands developed enterprise technology for identifying and classifying sensitive information and applying protection policies to it. The approach was intended to help organizations control data use across business environments rather than relying solely on network or device-level defenses. Microsoft acquired this technology and incorporated it into its wider information-protection strategy, including capabilities associated with Azure Information Protection. A complete list of original commercial product names is not established by the available reference material.

• 2015Microsoft chose to acquire Secure IslandsM&A

  Microsoft sought to expand its enterprise security capabilities, particularly in data classification and information protection.

  What changed. Microsoft acquired Secure Islands and integrated its technology into Microsoft's information-protection product strategy.

  Aftermath. Secure Islands ceased to operate as a prominent independent brand, while its technology became part of Microsoft's broader security and cloud ecosystem.

  Source

• 2015Microsoft acquired Secure Islands

  Microsoft announced the acquisition of Secure Islands, an Israeli data-security company. The transaction brought Secure Islands' information-protection technology into Microsoft's security portfolio.

  M&A
  Source

1. Secure Islands
2. List of mergers and acquisitions by Microsoft