Credits for flowchart icons:

• Text: https://pixabay.com/vectors/file-description-outline-document-6472230/
• CPU: https://pixabay.com/vectors/cpu-processor-intel-amd-chip-152656/
• List: https://pixabay.com/vectors/list-checklist-paper-to-do-1778593/
• Locker: https://pixabay.com/vectors/vault-strongbox-safe-154685/
• Security lock: https://pixabay.com/vectors/cybersecurity-lock-encryption-logo-6673412/