
An internal threat investigation focuses on risks that come from people with legitimate access: employees, contractors, or partners. That is different from a general workplace investigation into a harassment complaint or a one-off policy dispute. For corporate security teams in Toronto and across the GTA, the goal is to detect misuse of access, protect assets, and document facts without turning the workplace into a rumour mill.
PiPro provides licensed private investigation support for discreet internal threat files. We operate within Ontario law and your counsel’s instructions. We do not hack systems or ignore privacy rules to “get a result.”
What internal threat investigation means
It is fact-finding aimed at insider risk. Typical concerns include:
- Unauthorized removal or sharing of confidential data
- Embezzlement, expense fraud, or inventory theft
- Intellectual property misuse
- Sabotage of systems, equipment, or processes
- Repeated security or access policy violations tied to a specific person or role
The work combines interviews, document and log review, and, where lawful and necessary, discreet observation. Assumptions are not evidence.
How this differs from a standard workplace investigation
A standard workplace investigation often starts from a formal complaint about behaviour between people. An internal threat file often starts from loss indicators, access anomalies, or security events. If you need the general process for complaints and HR-led misconduct files, use our hub on workplace investigations. If you are writing the organizational playbook, see the workplace investigation policy guide.
Employee monitoring and workplace surveillance — keep them lawful
Monitoring access logs, unusual file transfers, or time-and-attendance anomalies can support an internal threat investigation when the practice matches your policies and applicable privacy and employment rules. Video review of controlled areas may help confirm or rule out physical theft.
Professional investigators should keep monitoring proportionate and documented. Broad, secret surveillance without a clear mandate creates legal and culture risk. Confirm the framework with counsel before scaling technical monitoring.
Insider threat prevention that actually helps
- Least-privilege access and periodic access reviews
- Clear offboarding and credential revocation
- Training on data handling and reporting channels
- Early review of unexplained loss, not only after large damage
- Independent investigation when internal politics would taint the file
When to call a licensed investigator
Consider external help when you see unexplained financial gaps, suspected data exfiltration, repeated violations by the same access profile, or sensitive allegations that leadership cannot investigate neutrally. Multi-site GTA operations (Toronto, Mississauga, Brampton, Markham) often need a single coordinated evidence trail rather than fragmented site reports.
Licensed Ontario investigators work under the Private Security and Investigative Services Act, 2005 (PSISA). For related service options, see corporate investigation and investigative research.
What you receive
A clear chronology, evidence summary, and limitations. Management and counsel decide employment, civil, or security responses. We do not promise arrests or guaranteed recovery of stolen assets.
Internal threat investigation FAQs
What is an internal threat investigation?
It is a structured inquiry into risks or misconduct originating from trusted insiders with legitimate access to systems, data, or facilities.
Is employee monitoring legal in Ontario?
It can be, when done for legitimate purposes, with appropriate notice and limits under applicable privacy and employment rules. Get counsel’s view for your workplace before expanding monitoring.
Does workplace surveillance always mean hidden cameras?
No. It can mean reviewing existing CCTV, access control data, or focused lawful observation. Hidden methods require careful legal review.
When should a business hire a private investigator?
When indicators of insider loss or abuse need discreet, independent fact-finding beyond routine HR interviews.
Will the investigation become public to all staff?
Professional files stay need-to-know. Oversharing undermines evidence and workplace trust.
Next step
If your organization needs a confidential internal threat investigation in Toronto or the GTA, contact PiPro. Call 416-912-7755 or use our contact form. Share what you have already observed, without circulating accusations widely.

