M&A Wave Slams IT with Security Challenges
Key Questions
What was the scale of M&A activity in 2025?
Global M&A reached $4.7 trillion in 2025, up 43% from prior years, with 80% involving IT integrations. This wave creates significant security challenges.
What are best practices for M365 tenant consolidation post-merger?
Prioritize cross-tenant migrations for Exchange, Teams, SharePoint, with Zero Trust, MFA, and Entra enforcement. Address 33% ROT waste to reduce sprawl and risks.
What security fears arise from M&A in Microsoft environments?
41% of organizations fear issues with M365, Active Directory, and RC4. Implement two-phase risk management and SharePoint governance automation to mitigate site sprawl and permissions chaos.
2025 M&A $4.7T (+43%), 80% IT; tenant consolidation best practices (ROT 33% waste, cross-tenant migrations/Exchange/Teams/SP/Zero Trust/MFA/Entra); SharePoint gov automation (site sprawl/perms); 41% fear M365/AD/RC4; two-phase risk mgmt AI gaps.