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us Work & employment crises former employer contacting new employer • old boss calling my new job • unsolicited reference • backchannel reference • negative reference fear • badmouth by former employer • reference sabotage • blacklisting concern • retaliation after leaving job • new job offer at risk • employment verification gone wrong • former employer spreading rumors • defamation worry • interference with new employment • hr reference check surprise • stop former employer contacting work • document bad reference • post-employment retaliation

What to do if…
you discover a former employer is contacting your new workplace about you without warning

Short answer

Ask your new employer’s HR to document exactly what was received/said and to route any future contact about you through HR only. Then preserve evidence and shift everything to written communication so there’s a clean record.

Do not do these things

  • Do not call your former employer to argue; don’t let this happen off-record.
  • Do not threaten lawsuits in a heated message or on social media.
  • Do not quit your new job “before they fire me” — that’s an irreversible move you rarely need to make in the first hours.
  • Do not ask coworkers to investigate or spread counter-rumors.
  • Do not assume it’s automatically illegal (or legal) everywhere — rules vary by state and by what exactly was said and why.

What to do now

  1. Get the concrete details from your new employer (and ask them to save everything).
    Ask HR: who contacted them, date/time, method, exact statements, and whether it was a requested reference or unsolicited outreach. Ask HR to retain emails, messages, voicemail, and any internal notes.

  2. Ask HR to lock down your “reference channel.”
    Request: “Please don’t take informal calls about me. If anyone contacts you about me, please route them to HR and ask for it in writing.” This reduces repeat damage and avoids misunderstandings.

  3. Check what you already authorized and what you can rely on.
    Review your application/onboarding paperwork: did you sign authorizations for reference checks or background screening? If you have a separation agreement or a written “neutral reference” promise, find it now.

  4. If a third-party background check or reference-check company is involved, use your FCRA protections.
    Ask HR whether they used a consumer report or investigative consumer report (for example, a background check or third-party reference checking). If the employer is considering a negative decision based on that report, you can ask for the pre-adverse action notice materials (including a copy of the report and the “Summary of Your Rights Under the FCRA”) so you can review and dispute inaccuracies with the consumer reporting agency.

  5. Send a short written notice to your former employer to stop contacting your workplace.
    Keep it neutral: you understand they contacted your current employer; you’re asking them to stop contacting individuals there; and to direct any verification/reference communication to HR, in writing, and to keep it factual. Ask them to confirm in writing.

  6. Correct the record with your new employer in the smallest, most verifiable way.
    Ask what concern it raised, then provide brief documentary corrections (dates/titles, written performance feedback you already have, copies of any agreed reference). Offer alternative references if needed.

  7. If (and only if) this may be retaliation tied to discrimination/EEO rights, preserve evidence and consider the EEOC route.
    If you previously complained about discrimination/harassment, requested accommodations, participated in an investigation, or otherwise engaged in activity protected by EEO laws, document everything and consider speaking with an employment attorney or contacting the EEOC. Deadlines can be strict and depend on where you are.

  8. If contact continues or your job is threatened, get state-specific legal advice.
    Defamation and “interference” claims (and defenses) vary widely. A local employment attorney can tell you what’s realistic where you live and what evidence matters.

What can wait

  • You do not need to decide today whether to file a lawsuit or government charge.
  • You do not need to confront the person who called or run your own investigation.
  • You can wait before making public complaints; first build a clean written record and stop repeat contact.
  • You can review later whether any agreement about references/non-disparagement applies — first contain the situation.

Important reassurance

This can feel like your new job is slipping away, but many employers treat unsolicited “backchannel” contact as unreliable. By calmly documenting and tightening the HR channel, you’re making it easier for your new employer to disregard noise and rely on formal, reviewable information.

Scope note

These are immediate first steps to prevent further harm and preserve evidence. If your offer/employment is at risk, or if you believe the contact is knowingly false or retaliatory, get state-specific advice before escalating.

Important note

This is general information, not legal advice. U.S. employment and defamation rules vary by state and depend heavily on exactly what was said, to whom, and why. If you feel threatened or stalked, prioritize safety and contact local law enforcement.

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