Cyberattack

Dimensionality Reduction for Cyberattack Classification: A Comparative Evaluation of PCA and Linear Predictive Coding

arXiv:2606.05584v1 Announce Type: new Abstract: High-dimensional feature representations are widely used in machine learning-based cyberattack detection systems. However, they increase computational complexity and may hinder deployment in resource-constrained environments. In this paper, we investigate feature compression techniques for cyberattack classification by comparing two dimensionality reduction approaches: Principal Component Analysis (PCA) and Linear Predictive Coding (LPC).

Cyberattack on CBSE re-evaluation site hours after launch

A potentially debilitating wave of alleged cyberattacks struck CBSE's newly launched Class 12 verification and re-evaluation portal within hours of its activation on Tuesday, raising fresh concerns over the cybersecurity preparedness of India's high-stakes examination infrastructure and the safety of sensitive student data linked to the board's on-screen marking (OSM) system. CBSE said the site faced a denial-of-service attack that generated nearly 15 lakh hits within two minutes and more...

'15 lakh hits within 2 mins': CBSE re-evaluation portal faces massive cyberattack

CBSE reported that its re-evaluation portal faced multiple cyberattack attempts while processing over 16,000 student submissions for verification and re-evaluation of Class 12 answer sheets. The board said a denial-of-service attack generated nearly 1.5 million hits within two minutes, along with over one lakh unauthorized access attempts. Despite the disruptions, the platform remained operational.

CBSE receives over 70,000 re-evaluation requests as portal withstands cyberattack attempts

CBSE’s post-result grievance portal has received over 70,000 applications for verification and re-evaluation within days of launch, even as it faced repeated cyberattack attempts. The Board reported 7,314 verification and 63,119 re-evaluation requests. Despite a DDoS attack and millions of access requests, security systems including WAF and DDoS mitigation kept the portal functional.

CBSE blocks 3.8 million cyberattack packets amid revaluation rush

CBSE said it successfully blocked a 3.8 million-packet denial-of-service (DoS) cyberattack targeting its verification and re-evaluation portal while maintaining uninterrupted services for students. Despite the attempted disruption, the portal processed over 56,000 applications for answer-book verification and re-evaluation. The Board said technical teams are enhancing performance and security.

Anthropic expands access to Mythos despite warnings of mass cyberattacks

Anthropic is expanding access to Mythos, its powerful cybersecurity model, to 150 new partners across more than 15 countries even as the company warns that a successful attack on any of their systems could affect more than 100 million people. Anthropic is expanding testing of Mythos, its latest cybersecurity model, by bringing in around 150 additional partners. The company, seen as the main rival to OpenAI’s ChatGPT, announced in April that it was launching Mythos, a model it said “has...

'15 lakh hits within 2 mins': CBSE re-evaluation portal faces massive cyberattack

Hours after the Central Board of Secondary Education (CBSE) launched its much-anticipated verification and re-evaluation portal for Class 12 students on Tuesday, the board reported a series of "cyber threats" targeting the platform. According to CBSE, at one point, the portal received nearly 15 lakh hits within just two minutes as an attempt to deny students access to the platform. The board also detected more than one lakh attempts to gain unauthorised access to files, which it attributed...

Netherlands Seizes 800 Servers, Arrests 2 for Aiding Cyberattacks

Beijing escalating AI espionage to catch up with the U.S. on tech, cybersecurity firm says

cybersecurity giant CrowdStrike warned Tuesday of increasing cyberattacks from China-based entities aimed at stealing artificial intelligence to narrow the tech gap with the U.S. The Chinese entities accounted for more than 58% of state-sponsored targeted cyberattacks aimed at tech companies, especially their AI assets, CrowdStrike said in a report. "China-nexus adversaries are escalating espionage against technology organizations to steal the AI capabilities and intellectual property they...

Public sector bank accounts not needed for re-evaluation fee: CBSE

Amid confusion among candidates following the launch of the system earlier this week, CBSE Wednesday clarified that students applying for verification and re-evaluation of Class XII answer sheets do not need to hold accounts with State Bank of India, Canara Bank, Bank of Baroda or Indian Bank for payments on board’s online portal. Board also said the portal was functioning smoothly despite a major cyberattack attempt Tuesday, when the system came under a barrage of denial-of-service attacks...