High probability of accidental exposure if used for sensitive data.
While your specific note date is from 2022, "Notepad" and related software have recently faced significant security scrutiny: Note 11/12/2022 7:57:40 AM - Online Notepad
Developers occasionally paste code snippets or config files containing database strings or private IP addresses. 3. Recent Context (2025–2026) High probability of accidental exposure if used for
Microsoft patched a critical flaw ( CVE-2026-20841 ) in the default Windows 11 Notepad that allowed remote code execution via malicious Markdown links. Summary of Findings Description Identity redirecting users to malicious updates.
Users frequently use anonymous notepads to temporarily store passwords, API keys, or login tokens.
An auto-generated timestamp title from an anonymous web-based notepad.
Between June and December 2025, the official Notepad++ hosting infrastructure was hijacked by state-sponsored actors, redirecting users to malicious updates.