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When you read reports about cyber-attacks affecting operational technology (OT), it's easy to get caught up in the hype and assume every single one is sophisticated. But are OT environments all over the world really besieged by a constant barrage of complex cyber-attacks? Answering that would require breaking down the different types of OT cyber-attacks and then looking back on all the historical attacks to see how those types compare.  The Types of OT Cyber-Attacks Over the past few decades, there has been a growing awareness of the need for improved cybersecurity practices in IT's lesser-known counterpart, OT. In fact, the lines of what constitutes a cyber-attack on OT have never been well defined, and if anything, they have further blurred over time. Therefore, we'd like to begin this post with a discussion around the ways in which cyber-attacks can either target or just simply impact OT, and why it might be important for us to make the distinction going forward. Figure 1 Th...

Almost 20,000 Tesco Bank customers have had their money stolen from their accounts after the banking arm of UK's biggest retailer fall victim to a hacking attack this weekend. As a result of the hack, Tesco Bank has frozen online transactions in an attempt to protect its customers from, what it described as, the " online criminal activity. " However, customers can still use their debit and credit cards for cash withdrawals and card-based payments. Tesco Bank has not disclosed any details of the cyber attack or how accounts had been compromised, but Benny Higgins, chief executive of Tesco, confirmed that the hack affected 40,000 of its 136,000 accounts, half of which had already been used to withdraw money fraudulently over the weekend. The bank would not disclose the total amount stolen from the accounts, but confirmed that the amount stolen was a " big number but not a huge number. " If you have been affected by this incident, don't worry! Higgins has apo...

Ukraine's biggest telecom operator Kyivstar has  become  the victim of a " powerful hacker attack ," disrupting customer access to mobile and internet services. "The cyberattack on Ukraine's #Kyivstar telecoms operator has impacted all regions of the country with high impact to the capital, metrics show, with knock-on impacts reported to air raid alert network and banking sector as work continues to restore connectivity," NetBlocks  said  in a series of posts on X (formerly Twitter). Kyivstar, which is owned by Dutch-domiciled multinational telecommunication services company VEON,  serves  nearly 25 million mobile subscribers and more than 1 million home internet customers. The company said the attack was "a result of" the war with Russia and that it has notified law enforcement and special state services. While Kyivstar is working to restore the services, the internet watchdog noted that the telco is largely offline. That said, Kyivstar has yet ...

Targeted ransomware attacks on banking and finance, government , healthcare , and critical infrastructure are on the rise, with the latest victim being the state government of Louisiana. The state government of Louisiana was hit by a large-scale coordinated ransomware attack yesterday, which forced the state to take several state agency servers offline, including government websites, email systems, and other internal applications, to mitigate the risk of the malware's infection from spreading. The Monday's ransomware attack resulted in the subsequent shutdown of a majority of large state agencies, including the Office of the Governor, the Office of Motor Vehicles, the Department of Health, the Department of Children and Family Services, and the Department of Transportation and Development, among others. Louisiana Gov. John Bel Edwards revealed the incident in a series of tweets, saying that he had activated the state's cybersecurity team in response to the cyber ...

If you believe that your organization is not at real risk of cyber attack, then you are absolutely wrong. Incidents of massive data breaches, advanced cyber attacks coming from China , groups like Syrian Electronic Army , Hacking Point of Sale machines at retailers such as Target have splashed across the news in the last one year. Whether a Government Agency or Private Company, Small or a Large Tech Company.... ...It's no secret that No one is Immune to Cyber Attacks . This article is the first in a two-part series from The Hacker News , listing first four out of  Top 7 Brutal Cyber Attacks. And here we go... #1 "Hacking Team" Data Breach Hacking Team , the controversial spyware company, recently been hacked by some unidentified hackers that exposed over 400 gigabytes of its internal sensitive data on the Internet. Milan (Italy) based IT firm 'Hacking Team' sells intrusion and surveillance software solutions to Governments and Law Enforcement agen...

China has something very impressive that we are not aware of. The country has a powerful and previously unknown weapon that its government is using to bolster their cyber attack capabilities: Dubbed " The Great Cannon. " INTERNET CENSORSHIP IN CHINA When I talk about Internet censorship, it is incomplete if I don't mention China. China is famous for its Great Wall of China and Great Firewall of China . The censoring of Internet access and blocking an individual website in China by its government, known as the Great Firewall of China. But, why the Chinese government does that? The answer is very simple: The Chinese government restricts those contents it deems sensitive for its country's so-called democracy. It illegalize certain online speech and activities, block selected websites, and filter keywords out of searches initiated from computers located in Mainland China. The worse: Those Chinese citizens who offend authorities against Int...

Iran has throttled internet access in the country in a purported attempt to hamper Israel's ability to conduct covert cyber operations, days after the latter launched an unprecedented attack on the country, escalating geopolitical tensions in the region. Fatemeh Mohajerani, the spokesperson of the Iranian Government, and the Iranian Cyber Police, FATA, said the internet slowdown was designed to maintain internet stability and that the move is "temporary, targeted, and controlled, to ward off cyber attacks." Data shared by NetBlocks shows a "significant reduction in internet traffic" around 5:30 p.m. local time. The development comes amid deepening conflict, with Israel and Iran trading missile attacks since Friday. These attacks have spilled over into cyberspace, as security experts warned of retaliatory cyber operations by Iranian state actors and hacktivist groups. The digital warfare unfolding behind the scenes goes two ways. Earlier this week, a pro...

Gene Simmons v. Anonymous : FBI raids Gig Harbor home in search of hacker who targeted Kiss frontman The FBI has raided the Gig Harbor home of an alleged hacker suspected in a cyber attack against Kiss bassist Gene Simmons. The October attack purportedly conducted by Anonymous – the same hacker group Sony claims crashed the Playstation Network – left the 61-year-old glam rocker's websites down for about a week after he spoke at an anti-online piracy conference. Now, an FBI cyber crime squad has traced the attack to a Gig Harbor home where agents seized computer equipment late last month. In court documents filed with the U.S. District Court in Tacoma, a Los Angeles-based FBI special agent alleged the perpetrator of the attack was "most likely" someone living at the Gig Harbor residence. Writing the court, though, the agent, a member of the Bureau cyber crime unit, stopped short of saying so with certainty. "I believe that someone with access to the computer at the subject r...

Koreans have once again gain media attention but this time not as an accused of any kind of hack attack, but as a victim of a severe attack on computers systems at a nuclear power plant in South Korea by an unknown hacker or a group. South Korea was hit by a cyber attack on its nuclear power plant, causing the operator to conduct drills in order to test the ability of the nuclear plant to cope with a full-scale cyber-attack. Although the plant's operator says no critical data has been leaked. The cyber attack came into light after a hacker posted blueprints of nuclear reactors online and threatened further "leaks" unless authorities close down the reactors. According to the South Korean Yonhap News Agency, the hacker was able to access blueprints of reactors, floor maps and other internal information on the plant. Last week with the help of a Twitter account named " president of anti-nuclear reactor group ," the hacker posted leaked data revea...

Introduction Cyber threats targeting supply chains have become a growing concern for businesses across industries. As companies continue to expand their reliance on third-party vendors, cloud-based services, and global logistics networks, cybercriminals are exploiting vulnerabilities within these interconnected systems to launch attacks. By first infiltrating a third-party vendor with undetected security gaps, attackers can establish a foothold, leveraging these weaknesses to penetrate the primary business partners' network. From there, they move laterally through critical systems, ultimately gaining access to sensitive data, financial assets, intellectual property, or even operational controls. Recent high-profile breaches like the 2024 ransomware attack that hit Change Healthcare, one of the world's largest health payment processing companies, demonstrate how attackers disrupted supply chain operations stealing up to 6TB of millions of patients' protected health information (PHI)....