Cheap GPS kiddie trackers have default password 123456 and send all information unencrypted

GPS trackers are designed to bring you greater peace of mind by helping you to locate your kids, your pets, and even your car. They can help keep the elderly or disabled safe by providing them with a simple SOS button to call for immediate help. Many devices are marketed for these purposes on common sites like Amazon and eBay and can be purchased for $25-$50 USD, making them more financially attractive than using a smartphone for some of the same capabilities.


As the instructions state, there is a web portal and a mobile application that you can use to manage the tracker. We took the path of least resistance and first opened a web application which is reachable at


As you can see the first red flag is that the login form is served over HTTP protocol, not over the more secure HTTPS. Moreover, you have two options to connect to the cloud: by using an account with username and password or using ID and password. Which one to pick? We turned to the leaflet for answers. It says:

Figure 5: Default password

This applies both for Android application as well as for web application. What is also an alarming fact is that last sentence: “…user needs to contact reseller to register a username if need to login by username.” Since you have to call the reseller to request a username, it’s fairly clear you are intended to use the ID, the password for which is “123456.” Not a good start.


Ok so let’s get back to the IMEI/ID that in combination with default password serves as the credentials for your account. Remember how easy it was to scan through that 1M of possible IMEI numbers as they have the same prefix? So we scanned an arbitrary 4M sequential serial numbers ourselves just to get an idea of the scale of the devices out there and we learned that at least six hundred thousand devices are live in the wild with default passwords. We executed a deeper scan of a subset of one million of these devices to determine make, model, and location; of the one million, we scanned, over 167,000 were locatable.

Figure 29: a result of a detailed scan of 1M serial numbers for tracker devices
Figure 30: last GPS position of trackers

Now it’s obvious that the same infrastructure is used for all or at least most of the trackers from this vendor as we identified 29 different models of trackers during this scan of 1M IMEIs. All the models are sold by wholesaler Shenzen i365, and we were able to determine that some models in this scan are being sold under different product names, which leads us to the conclusion that infrastructure and devices are being white labelled and sold under different brand names. In many instances, however, we were only able to determine a generic model number.

Number of trackers Tracker model
60601 T58
36658 A9
26654 T8S
20778 T28
20640 TQ
11480 A16
10263 A6
9121 3G
7452 A18
5092 A21
4083 T28A
3626 A12
2921 A19
2839 A20
2638 A20S
2610 S1
1664 P1
749 FA23
607 A107
280 RomboGPS
79 PM01
55 A21P
26 PM02
16 A16X
15 PM03
4 WA3
4 P1-S
3 S6
1 S9

Figure 31: trackers models and their counts in 1M detailed sample scan

Figure 32: affected models

You are probably already feeling like there is a lot more to this story than meets the eye as we found devices that are not produced by this particular company during this scan. It turns out that this problem is much bigger than it looks. How big? We’ll show you in the follow-up to this which goes deeper into the relationships between different products and companies and into many surprising facts about cloud infrastructure. We found more alarming vulnerabilities and much more instances of this cloud and trackers.

But so far we think we are speaking of approximately 50 different applications sharing the same platform (and probably also the same vulnerabilities) as seen in this picture:

Figure 33: the research continues, see you in part 2 where we uncover more about platform/cloud

Source: The secret life of GPS trackers (1/2) – Avast Threat Labs

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