Hacker Noon Cybersecurity

The AI Sidebar Spoofing attack leverages malicious browser extensions to impersonate trusted AI sidebar interfaces. The attack can trick users into executing dangerous commands that can lead to credential theft, device hijacking, and password exfiltration.Read All

DDoS attacks have been around for decades, but they’ve evolved far beyond the normal “flood the server until it breaks” approach most people imagine. Today’s attacks are powered by artificial intelligence that can identify vulnerabilities faster, orchestrate multi- vector campaigns, and adapt tactics in real time.Read All

Dan Levinson has joined Sendmarc as Customer Success Director – North America. Levinson will lead the development of customer success programs that help businesses strengthen their email security. He has over 15 years of experience spanning email security, email deliverability, account management, product management, and leadership.Read All

I built Inject-A-Poll, an educational security demonstration that shows how hidden instructions in code repositories could potentially manipulate AI coding assistants. The project explores 10 vulnerability scenarios including hidden HTML comments, malicious npm scripts, credential harvesting, and AI-suggested backdoors. While these are theoretical demonstrations in a safe environment, they highlight important security considerations as AI tools become more integrated into development workflows. Key takeaways: always sandbox unfamiliar code, manually review hidden content, question AI suggestions about credentials and external requests, and verify package legitimacy. The project is open-source and designed for learning check it out at github.com/dondetir/Inject-A-Poll.Read All

As cyber threats evolve, data integrity emerges as the ultimate prize learn why protecting truth is the future of security.Read All

KuCoin becomes the first top 10 crypto exchange to achieve CCSS certification, now holding all four major security certifications (CCSS, ISO 27001, ISO 27701, SOC 2 Type II). Read All

Hackers made off with roughly 70,000 scanned government IDs from a third-party provider used by Discord’s support and age-verification systems. The ICO is assessing whether British users were among them.Read All

AI has shifted the security threat model from infrastructure to behavior, but most companies haven’t updated their defenses. Governance is the missing link: NIST’s frameworks provide structure, startups need simple guardrails, and compliance should be seen as a growth enabler, not a cost.Read All

MCPTotal delivers the first end-to-end platform for organizations to safely adopt MCPs while also improving their usability. Its hub-and-gateway architecture provides centralized hosting, authentication and credential vaulting while acting as an AI-native firewall to monitor traffic.Read All

The average person manages 255 passwords in 2025. That’s up 70% from 2020. Human working memory can hold about 7 items. 85% of people reuse passwords.Read All

Deloitte used AI to write a government report with fabricated citations and references to academic papers that don’t exist. The firm bolted AI onto an existing process without redesigning the system around it.Read All

MCP makes it possible for your agents to connect to Slack, GitHub, your database, and whatever else you throw at it. It’s like giving your agent a universal adapter to plug into anything. The current security model? API keys.Read All

Sweet Security has been recognized as both a Cloud Security Leader and a Cloud Application Detection & Response (CADR) Leader in the 2025 Cloud Security Report. The report highlights vendors shaping the future of cloud security through innovation, visibility, and runtime-powered defense.Read All

Gcore has successfully mitigated one of the largest DDoS attacks recorded to date. Multi-regional DDoS attack reached a peak bandwidth of 6 Tbps (terabits per second) and a packet rate of 5.3 Bpps (billion packets per second). Attack targeted a hosting provider operating in the gaming sector.Read All

The OpenSSL 3.5.4 FIPS Object Module provides an open-source, standards-compliant cryptographic module aligned with the FIPS 140-3 standard. This submission is the first step toward a FIPS-140 validated PQC-ready module.Read All

SquareX has released critical security research exposing major vulnerabilities in AI Browsers. The research could allow attackers to exploit AI B browsers to exfiltrate sensitive data, distribute malware and gain unauthorized access to enterprise SaaS apps. The timing of this disclosure is particularly significant as major companies including OpenAI, Microsoft, Google and The Browser Company have announced or released their own AI browsers.Read All

I explain why relying on phishing training is obsolete. Agentic AI isn’t just sending smarter emails: it’s an autonomous, self-correcting threat that weaponises human trust at machine speed. My GRC work shows how these agents systematically bypass third-party controls and achieve military-grade coordination across IT and OT, demanding an urgent and autonomous shift in our defence and governance models.Read All

Explore how GPT and NLP tools are fueling phishing, scams, and misinformation. Read All

INE Security, a leading provider of cybersecurity training and certifications, today announced the results of a global study examining the convergence of networking and cybersecurity disciplines. The report documents operational challenges created by this convergence and presents cross-training as the strategic solution. Only 33% feel well-prepared to handle networking-cybersecurity intersection, creating operational vulnerabilities and increased costs.Read All

10/7/2025: Top 5 stories on the HackerNoon homepage!Read All