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Alexandre Ribeiro – Certified Private Investigator
LIDEPPE | WAD | IKD | APDPE
24/7 Confidentiality
Bug and Hidden Device Detection
Technical articles and practical guides on detecting microphones, hidden cameras and GPS trackers.


AirTag or Hidden Tracker: How to Tell If You Are Being Followed and What to Do
How to detect an AirTag or hidden tracker in your car, bag or coat: iPhone and Android alerts, where to look and what to do with the evidence.

Detective Alexandre Ribeiro
3 days ago5 min read


Stalking and Technological Control: Trackers, Cameras and Spyware Used to Watch You
Signs that someone is using trackers, location sharing, cameras or stalkerware to control you, how to stay safe and where to get help in Portugal.

Detective Alexandre Ribeiro
3 days ago5 min read


Wiretaps, Recordings and Trackers: What Is a Crime in Portugal
Is it a crime to record a conversation, put a GPS on someone's car or install spyware in Portugal? The Criminal Code and Cybercrime Law explained with cases.

Detective Alexandre Ribeiro
3 days ago5 min read


WhatsApp Spied On: How to Tell If Someone Is Reading Your Messages and How to Protect Your Account
How to tell if your WhatsApp is being spied on or cloned: linked devices, WhatsApp Web, the 6-digit code, backups and spyware. Step by step.

Detective Alexandre Ribeiro
6 days ago5 min read


*#21#, *#62# and ##002# Codes: What They Show on Your Phone and What They Don't Detect
What the *#21# code and *#62#, *#61#, *#67#, ##002# and *#06# do, what they reveal about call forwarding and why they don't detect tapping or spyware.

Detective Alexandre Ribeiro
6 days ago5 min read


Is Your Phone Tapped? How to Tell in Portugal: Myths, Real Signs and What to Do
How to tell if your phone is tapped in Portugal: what a legal wiretap is, noise myths, real signs of spyware and what to do next.

Detective Alexandre Ribeiro
Oct 146 min read


How to Tell If Your Phone Is Being Spied On: 9 Signs and What to Do
Fast-draining battery, extra data use, someone who knows too much: the 9 signs of a spied-on phone, what to check on iPhone and Android and what to do.

Detective Alexandre Ribeiro
Oct 147 min read


Elite investigations in Lisbon: Counter-espionage and cutting-edge technology
The new era of private investigation in the capital The AR25 portal recently examined the development of intelligence services in Portugal, highlighting the need for advanced technologies to protect corporate data and assets. The Detetives Privados Portugal agency is considered a model in Lisbon for this transformation towards highly specialized investigative services. Industrial counter-espionage and electronic sweeps As outlined in the article, economic espionage remains a

Detective Alexandre Ribeiro
May 111 min read


How can I find out if my car is equipped with a GPS tracker?
High-precision electronic scanning service in Portugal If you feel that your journeys are being monitored, or if there is a strange coincidence that third parties are present at your destinations, your vehicle could be equipped with a hidden GPS tracker. If your doubt is about your relationship, see how to know if your partner is unfaithful. Nowadays, magnetic devices the size of a matchbox can be hidden in seconds. But what is easy to hide does not easily escape a profession

Detective Alexandre Ribeiro
May 112 min read


Is your office secure? Detection of listening devices and hidden microphones.
Protect your company's intellectual property and trade secrets. In today's business world, information is the most valuable asset. Industrial espionage is not a myth, but a reality, facilitated by modern technologies. Wi-Fi, GSM, or digital recording devices can be hidden in everyday objects such as extension cords, flowerpots, or smoke detectors. At Detetives Privados Portugal, we offer a Security Scanning Protocol (TSCM) designed to protect your communications. Invisible th

Detective Alexandre Ribeiro
May 112 min read


Your privacy is sacred: Detection of cameras and listening devices in homes
Protect your private life: cameras and bugs at home Our home is our sanctuary. But easy access to tiny surveillance devices has made violations of our privacy increasingly common. Whether it's a bitter divorce, unscrupulous landlords, or unauthorized surveillance – no one should feel watched in their own home. At Detetives Privados Portugal, we carry out thorough home sweeps to check whether there are hidden “eyes” or “ears” where they don’t belong. Where are the threats hidi

Detective Alexandre Ribeiro
May 112 min read
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