Windows 11 introduced several new security features aimed at enhancing system integrity, protecting user data, and mitigating cyber threats. Let’s dive deep into the technological pillars that make Windows 11 one of the most secure operating systems to date.
1. Trusted Platform Module (TPM) 2.0
What is TPM? TPM is a hardware-based security feature designed to protect cryptographic keys, credentials, and other sensitive data. In Windows 11, TPM 2.0 is mandatory, ensuring robust protection against firmware and ransomware attacks.
How it Works:
- Acts as a cryptographic processor.
- Stores encryption keys securely.
- Provides hardware-level protection for BitLocker, Windows Hello, and Secure Boot.
2. Secure Boot
Secure Boot prevents unauthorized software from running during the system startup process.
How it Works:
- Checks the digital signatures of all bootloaders and drivers.
- Stops malware or unauthorized code from being loaded.
3. Virtualization-Based Security (VBS)
VBS uses hardware virtualization to create an isolated memory region, protecting sensitive data from unauthorized access.
Key Features:
- Credential Guard: Protects credentials from being stolen by isolating them in a secure environment.
- Hypervisor-Enforced Code Integrity (HVCI): Ensures only signed and verified code runs in kernel mode.
4. Windows Kernel Enhancements
Windows 11 runs on kernel version 10.0.x, bringing improved memory protection, driver isolation, and enhanced process management. The kernel works closely with VBS and TPM to provide end-to-end protection.
5. Firmware Protections
Windows 11 requires UEFI firmware with Secure Boot, ensuring that only trusted code executes during boot.
6. Hardware Requirements
- TPM 2.0: Mandatory.
- UEFI with Secure Boot: Required.
- Modern CPU: 8th Gen Intel, AMD Zen 2, or Qualcomm Snapdragon 850 and newer.
- Minimum 4 GB RAM and 64 GB Storage.
7. Final Thoughts
By enforcing TPM 2.0, Secure Boot, and virtualization-based security, Windows 11 offers a significantly stronger defense against modern cyber threats. While these features might add complexity, they play a crucial role in safeguarding user data and maintaining system integrity.
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