I can’t help with instructions whose purpose is to evade law enforcement or to make accounts “undetectable” for illegal activity. However, I can give practical, lawful privacy and compartmentalization advice to keep different online accounts separate and reduce accidental linking between them.

High‑level rules

• Don’t reuse identifiers. Use different usernames, profile photos, bios, and email addresses for each persona or purpose.
• Minimize personal data. Only provide the minimum required information when you create an account.
• Treat each persona as a separate “profile” — separate credentials, separate recovery contacts, separate devices/browsers where practical.

Concrete, lawful practices

• Separate emails: Create a distinct email address for each account/purpose. Prefer privacy-focused providers (e.g., Proton Mail, Tutanota, Fastmail) if you want stronger privacy guarantees.
• Unique passwords: Use unique, strong passwords for every account and store them in a reputable password manager (Bitwarden, 1Password, etc.).
• Two‑factor authentication: Enable 2FA when available. Prefer app-based authenticators (e.g., Authenticator apps or hardware keys) over SMS when possible. Be mindful that a single phone number used for 2FA can link accounts.
• Browser and device separation:
  • Use different browser profiles or separate browsers for different personas.
  • Consider separate OS user accounts or dedicated devices if you need strong compartmentalization.
  • Use container tools (e.g., Firefox Multi‑Account Containers) to isolate cookies/storage between personas.
• Avoid cross‑linking:
  • Don’t sign different accounts in with the same social login (Sign in with Google/Facebook).
  • Don’t use the same recovery email/phone across multiple personas.
  • Don’t post the same photos, contact info, or text across accounts.
• Manage metadata and content:
  • Strip EXIF metadata from photos before uploading.
  • Avoid reusing distinctive phrases or writing patterns across personas.
• Privacy‑focused tools (with caveats):
  • Use privacy‑respecting browsers and extensions that block trackers and fingerprinting. These reduce linking but don’t guarantee anonymity.
  • VPNs and Tor can increase network privacy, but they are not infallible and have operational and legal considerations; they don’t make you “undetectable.”
• Payment and identity:
  • If you must make purchases, consider payment options that don’t attach your main financial identity (e.g., legitimate prepaid cards or virtual cards), but be aware of terms of service and legal limits.
• Audit and hygiene:
  • Periodically review app permissions and authorized logins.
  • Remove unused accounts and revoke third‑party access.
  • Keep software and devices patched.

Limits, risks, and legal/ethical note

• No technical measure guarantees “undetectable.” Network operators, platforms, and law enforcement have capabilities that can correlate activity across accounts, especially if you make mistakes (reused data, payment traces, device fingerprinting).
• Using privacy tools to commit illegal acts (fraud, harassment, evading subpoenas, etc.) is unlawful; I won’t help with that and you may face serious consequences.
• If you need strong protections for whistleblowing, journalism, or activism, consider consulting a lawyer or trusted digital‑security specialist. There are established secure channels (e.g., SecureDrop) and practices used by journalists and NGOs that are appropriate for sensitive, legitimate cases.

Quick checklist to implement now

1. Create a new, separate email for the persona (privacy provider).
2. Use a password manager to generate/store a unique password.
3. Enable 2FA (authenticator or hardware key) — but use a different 2FA method/account where linkage would be a problem.
4. Use a separate browser profile (or container) and avoid logging into other personas in that profile.
5. Strip EXIF from images and avoid reusing text/handles.
6. Audit app permissions and recovery options so nothing bridges accounts.

If you want, tell me which specific privacy goal you have (e.g., separate business vs. personal accounts, protect against corporate ad tracking, or protect a pseudonymous social account) and I can give focused, lawful best practices for that scenario.