PRINCE2 (Projects in Controlled Environments) is a widely adopted project management methodology that organizes projects into clearly defined stages with decision gates. Each stage is authorized by a project board, enabling structured governance. For your ISMS, PRINCE2 is relevant because ISO 27001 Annex A.5.8 requires information security in project management. If you use PRINCE2, you can embed security requirements as a fixed part of project initiation and stage transitions. PRINCE2 can be combined with agile methods (PRINCE2 Agile) to leverage the strengths of both approaches.