#certik #onlineattack #education #defi #blockchain #cryptocurrency A new CertiK series giving users bite-size tips and info to stay informed and safe in the #crypto space. Episode 10: What is an Online Attack? Learn about #onlineattacks and more in under 2 mins! https://certik.com/products/skynet Transcript: Through decentralization, blockchain technology can improve the safety of online activities. Many online attacks use Attack Vectors to exploit system weaknesses. DDoS, Eclipse, and a 51 Percent Attack are three common types. A DDoS, Distributed Denial of Service, attack, occurs when hostile hackers overload a network with requests. In blockchain, DDoS target crypto exchanges or mining pools. They disable a network's ability to serve users. Eclipse attacks control a single node inside an artificial environment. An attacker can manipulate communications with surrounding nodes to perform illegal transactions by isolating a node. When an assailant obtains control of 50% or more of a network's mining hashrate, it's called a 51 percent attack. The individual can submit fraudulent transactions, making the blockchain centralized. 51 percent attacks become difficult as a blockchain network increases in the number of honest nodes. Blockchain analytic tools such as CertiK’s Skynet help with online attacks by monitoring on-chain activity. To learn more about online attacks visit CertiK.com/resources.

In 2023, the Web3 security landscape experienced significant changes, as detailed in CertiK's Annual Report. The year saw a notable decrease in financial losses due to hacks, scams, and exploits, down to $1.8 billion, which is 51% less than in 2022 and 65% lower than in 2021. Despite this positive trend, the number of incidents rose to 751, indicating ongoing vulnerabilities. November emerged as the costliest month, with losses totaling $363 million. Private key compromises were identified as a primary cause, responsible for half of the year's losses. The report also explores intriguing cases like KyberSwap and analyzes the correlation between DeFi’s Total Value Locked (TVL) and the losses incurred. CertiK's achievements in 2023 included launching the SkyInsights platform, earning accolades for mobile security, and receiving a significant bug bounty from SUI. This highlights the company’s proactive approach in the evolving field of Web3 security.

Dive into the cutting-edge world of cybersecurity with our exploration of Zero-Trust Architecture—an approach that doesn't just patch up the weaknesses of the past, but revolutionizes how we protect our digital landscape. In this journey, we unveil how Web3, with its blockchain foundations, transforms the internet into a fortress without walls, where each transaction is transparent and trust is not assumed, but cryptographically verified. Say goodbye to the vulnerable systems of old and welcome a new era where every interaction is secure by design, creating an online ecosystem that's as robust as it is revolutionary. Join us to discover how the Zero-Trust model is paving the way for a safer, smarter, and more secure future online.