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Monnos | Buy Bitcoin & Crypto

Latest release: 5.8.5 ( 2nd January 2023 ) 🔍 Last analysed 23rd September 2021 . Custodial: The provider holds the keys
3.9 ★★★★★
931 ratings
10 thousand
17th September 2019

As the provider of this product holds the keys, verifiability of the product is not relevant to the security of the funds!

As part of our Methodology, we ask:

Is the product self-custodial?

If the answer is "no", we mark it as "Custodial: The provider holds the keys".

A custodial service is a service where the funds are held by a third party like the provider. The custodial service can at any point steal all the funds of all the users at their discretion. Our investigations stop there.

Some services might claim their setup is super secure, that they don’t actually have access to the funds, or that the access is shared between multiple parties. For our evaluation of it being a wallet, these details are irrelevant. They might be a trustworthy Bitcoin bank and they might be a better fit for certain users than being your own bank but our investigation still stops there as we are only interested in wallets.

Products that claim to be non-custodial but feature custodial accounts without very clearly marking those as custodial are also considered “custodial” as a whole to avoid misguiding users that follow our assessment.

This verdict means that the provider might or might not publish source code and maybe it is even possible to reproduce the build from the source code but as it is custodial, the provider already has control over the funds, so it is not a wallet where you would be in exclusive control of your funds.

We have to acknowledge that a huge majority of Bitcoiners are currently using custodial Bitcoin banks. If you do, please:

  • Do your own research if the provider is trust-worthy!
  • Check if you know at least enough about them so you can sue them when you have to!
  • Check if the provider is under a jurisdiction that will allow them to release your funds when you need them?
  • Check if the provider is taking security measures proportional to the amount of funds secured? If they have a million users and don’t use cold storage, that hot wallet is a million times more valuable for hackers to attack. A million times more effort will be taken by hackers to infiltrate their security systems.
The product cannot be independently verified. If the provider puts your funds at risk on purpose or by accident, you will probably not know about the issue before people start losing money. If the provider is more criminally inclined he might have collected all the backups of all the wallets, ready to be emptied at the press of a button. The product might have a formidable track record but out of distress or change in management turns out to be evil from some point on, with nobody outside ever knowing before it is too late.

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Please help us spread the word discussing the risks of centralized custodians with Monnos | Buy Bitcoin & Crypto  via their Twitter!

Do your own research!

Try out searching for "lost bitcoins", "stole my money" or "scammers" together with the wallet's name, even if you think the wallet is generally trustworthy. For all the bigger wallets you will find accusations. Make sure you understand why they were made and if you are comfortable with the provider's reaction.

If you find something we should include, you can create an issue or edit this analysis yourself and create a merge request for your changes.

The Analysis 

As this service is a private company maintained app with money laundering and other financial regulation compliances, our initial assessment is that it is a centralized custodial service.

Described in its Google Play app:

With Monnos you can:

  • Buy and sell more than 60 cryptos effortlessly
  • Copy the strategies of experienced traders, mirroring everything they do
  • Get a card with up to 5% cashback to use your crypto in the daily basis
  • Purchase the MNS token

Its Anti-Money Laundering and the Financing of Illicit and Terrorism Policy can be found here

3. Applicable Rules
Monnos reserves the right to refuse or terminate relationships with any person or entity that is not in line with its ethical principles, its Terms of Use, its Data Policy, its Money Laundering and Financing Prevention Policy of Illicit and Terrorism, or with any other document that indicates the parameters of performance of Monnos.

Under its Purchase Term, we can find clause D, of Section 9.

Private-Key Risk: Considering the risk of hacking, and considering that the Monnos model, as well as most global exchanges, does not provide a private key for each user, it may be interesting to consider the possibility of storage in a cold or hotwallet to the user’s preference.

This effectively confirms our initial assessment. We downloaded the app, and accessing the Bitcoin wallet was easy and as the Purchase Term indicated, the private key is not given to the user but is retained by the service.

Verdict is custodial and therefore, not verifiable