Security Articles

What is a Digital signature?

A digital signature is a cryptographic method used to verify the validity and integrity of digital data. It is a digital equivalent of traditional handwritten signatures, with a higher level of complexity and security. Simply put, it is a special code attached to a message or document, acts as proof that the message or document has not been tampered with.

Advanced

6 min

23 August 2020

What is Double-spending?

The primary goal of blockchain technology is to create a reliable and secure digital money system. Before Bitcoin was invented, attempts to design a similar system had already been made, but they were all faced with the problem that transactions could be copied.

Beginner

3 min

6 July 2020

What is 51% Attack

51% attack is a hackers' assault on the blockchain network, where one person or a group of miners, for example, one mining pool can control much of the hashing speed. It can lead to disruption of the network processes as the attacker will have enough hashing power to exclude or change a specific transaction or the order of transactions.

Beginner

4 min

29 June 2020

Zcash and Guarda: Together for Privacy

Guarda Wallet proudly supports over 45 popular blockchains with their tokens and considers it essential to raise public awareness of these projects, cryptocurrency market events and blockchain technology in whole. Let's turn to ZCash foundation as one of the major forces of our industry and find out more about its specific features.

Beginner

5 min

14 May 2020

How to Keep Your Crypto Wallet Safe and Secure?

How to Keep Your Crypto Wallet Safe and Secure?

A crypto wallet mostly works in the same way as a traditional wallet does – it is designed to keep your money safe and always needs to be kept safe and secure for this to happen.

Advanced

3 min

21 January 2020

How to detect crypto scam?

Unfortunately, crypto fraud is still a reality. Attackers will try to take advantage of all the places they see promise or advantage. It is certainly still possible to steal funds in the cryptocurrency space, so the fraudsters always look for new ways to trick people – whether by stealing their data or money directly.