Cobo Vault | Publish0x
Cobo Vault
Cobo Vault

Cobo Vault

An air-gapped, QR-code enabled hardware wallet built to protect your digital assets from hacking attempts, hardware tampering, and physical damage.


On Open Source and Transparency

30 Jun 2020 6 minute read comments Cobo Vault

We’ve come a long way toward making our product as open source as possible since we last published this article describing why we thought closed source was a safer option for hardware wallets. We are now convinced that an open source product is what...

Second-Gen Hardware Wallets & Feature Support

29 Apr 2020 6 minute read comments Cobo Vault

We built our first-generation Cobo Vault to be tough enough to withstand the harsh environmental conditions of isolated regions where miners operate for cheap electricity costs. Now we are announcing a second generation of hardware wallets that drop...

Why Cobo Vault Only Uses a Mobile Companion App

13 Apr 2020 4 minute read comments Cobo Vault

Every hardware wallet needs to communicate with a companion app so it can sign transactions and send them to the blockchain, and a companion app has to be on a device connected to the internet. Currently, most companion apps are desktop or web-based...

Web Authentication: A Counter to Supply Chain Attacks

31 Mar 2020 3 minute read comments Cobo Vault

How do you know your hardware wallet isn't a fake? Supply chain attacks are one of the most serious security threats for hardware wallets because they target vulnerabilities in the logistics process and could happen without the owner knowing. This is...

Self-Destruct Mechanism’s Unique Defense Against Side-Channel Attacks

21 Mar 2020 3 minute read comments Cobo Vault

Side-channel attacks are how most hardware wallets get hacked. Someone with enough time, resources and skill to scrutinize the device’s circuit board is able to steal the private keys. Currently, Secure Elements and Passphrase features are the most t...

Should You Enable Passphrase?

27 Feb 2020 4 minute read comments Cobo Vault

The Trezor hack publicized by Kraken Security Labs showed that it is possible to steal private keys from a Trezor in just 15 minutes with a few hundred dollars of equipment. The fact that a power analysis attack can accomplish this highlighted the im...

The Glacier Protocol and Using Dice to Generate Keys

20 Feb 2020 4 minute read comments Cobo Vault

The Glacier Protocol is a storage scheme that takes the “not your keys, not your bitcoin” ethos to its literal extreme. While it’s a great reference for a completely trustless model of security, the majority of users don’t have the technical expertis...

Deep Cold Storage: How Beginners Can Swim in the Deep End

15 Jan 2020 5 minute read comments Cobo Vault

Cold storage is the practice of keeping crypto assets in offline, yet accessible locations. Deep cold storage takes this concept to the next level for assets you plan on leaving untouched indefinitely — possibly until they’re passed down to your heir...

Secure Elements: The Last Line of Defense

7 Jan 2020 4 minute read comments Cobo Vault

The recently passed Proof-of-Keys movement marked a silent revolution of individuals declaring financial independence by claiming ownership of their keys. In our last article, we explained why a hardware wallet with a Secure Element gives you the mos...

Secure Elements: Harnessing A Force of Nature

7 Jan 2020 3 minute read comments Cobo Vault

Part of the brilliance of Bitcoin is its ability to harness the infinite power of randomness to disguise information for security purposes. Think about that for a second — Bitcoin leverages nothing less than entropy, a force of nature, to make your p...