The hottest Cybersecurity Substack posts right now

And their main takeaways
Category
Top Technology Topics

United Healthcare Ransomware, Secured Infrastrure, Dropbox Sign, AI security center and CYBERSECEVAL 2

Secure GenAI • 0 implied HN points • 06 May 24
🕹 Technology Cybersecurity
  1. The healthcare sector needs stronger cybersecurity measures to protect against cyberattacks and safeguard patient data.
  2. Large healthcare companies like UnitedHealth Group have a responsibility to ensure the resilience of critical healthcare infrastructure and protect patient information.
  3. The Change Healthcare cyberattack highlighted vulnerabilities and emphasized the importance of addressing cybersecurity risks and enforcing standards in the healthcare industry.

Testing stage, Darkweb monitor, DHS's AI safety board, Kaiser breach and a new book on LLM security.

Secure GenAI • 0 implied HN points • 28 Apr 24
🕹 Technology Cybersecurity
  1. Cyber attacks are on the rise in developing countries like Senegal, Chile, and Kenya, with billions of records stolen and financial losses increasing.
  2. Proton launched Dark Web Monitoring to help identify credential leaks and exposed data, using color-coded alerts for different priorities.
  3. The Department of Homeland Security formed an AI Safety and Security Board with tech leaders to enhance AI deployment across critical infrastructures like transportation and public health.

Pass-by 2FA Gmail and Youtube, America Privacy Right Acts, Apple Spyware, RedTeam on LLMs.

Secure GenAI • 0 implied HN points • 14 Apr 24
🕹 Technology Cybersecurity
  1. Some accounts with 2FA enabled were hacked, leading to a new type of phishing scam targeting platforms like Gmail, Youtube, and Microsoft 365.
  2. A proposed online data privacy and protection bill focuses on giving users more control over their data, including the ability to opt out of targeted advertising and access their data.
  3. Apple issued a warning about a mercenary spyware attack targeting specific individuals with high confidence, emphasizing the seriousness of the threat.

Weekly update: Data breach, Incognito, Linux malware, new course about Red Team for LLMs, phishing without login page.

Secure GenAI • 0 implied HN points • 07 Apr 24
🕹 Technology Cybersecurity
  1. AT&T experienced a massive data breach affecting 73 million customers' personal information, prompting concerns about data security measures in place.
  2. Google is implementing new security measures in Incognito mode to prevent unauthorized access using stolen session cookies, emphasizing the importance of safeguarding user data.
  3. The discovery of the first Linux malware injected by an open-source maintainer highlights the vulnerability of systems worldwide, underscoring the critical need for enhanced cybersecurity measures.

Artificial Intelligence Cyber security 2024

Secure GenAI • 0 implied HN points • 29 Mar 24
🕹 Technology Cybersecurity
  1. Hackers are increasingly using social engineering tactics to compromise security, like with the GoldPickaxe trojan targeting iOS devices.
  2. Phishing attacks are evolving to be more sophisticated, with scammers utilizing messaging platforms and Generative AI to create malicious content.
  3. The landscape of cyber threats is changing, with a rise in no-code hacking tools available on the dark web and operated by groups in regions with weaker cybersecurity laws.
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How I get started on AI Privacy and Security

Secure GenAI • 0 implied HN points • 24 Mar 24
🕹 Technology Cybersecurity
  1. AI development can have ethical implications - it's essential to consider privacy and security.
  2. Scams and hacks are prevalent in online spaces, and continuous education in cybersecurity is crucial.
  3. The power of AI for enhancing social media campaigns comes with potential risks of data manipulation and privacy concerns.

Gradient Flow #20: Ethical Algorithms, Knowledge Graphs, Secure Communication

Gradient Flow • 0 implied HN points • 22 Oct 20
🕹 Technology Cybersecurity
  1. Knowledge graphs are crucial in modern AI applications and tools are available for developers to start using them.
  2. End-to-end machine learning platforms are essential for accelerating ML adoption and ensuring its sustainability.
  3. Responsible AI practices are necessary to address gender and racial bias in applications like sentiment analysis and machine translation.

Welcome to Hack or Be Hacked

Hack or Be Hacked • 0 implied HN points • 01 Jun 24
🕹 Technology Cybersecurity
  1. The newsletter "Hack or Be Hacked" discusses the importance of embracing hacks and avoiding being hacked in the context of societal challenges caused by information technology.
  2. The author emphasizes the value of maximizing variance in technology and society to create more robust and diverse systems.
  3. The author aims to post weekly on Substack to practice English and engage with readers, welcoming feedback and encouraging support through subscriptions.

Bằng chứng máy chủ Bluezone có thể âm thầm lấy dữ liệu của người dùng

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 08 Aug 20
🕹 Technology Cybersecurity
  1. The Bluezone server can quietly retrieve user data without consent, potentially accessing all users' contact history.
  2. The server has full authority to take data anytime without needing user permission, raising concerns about transparency and accountability.
  3. The lack of assurances or details on server operations raises questions about how users can verify their data is handled securely.

Reminder về buổi hỏi đáp sử dụng Internet an toàn

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 17 Jul 20
🕹 Technology Cybersecurity
  1. The online session will cover basic knowledge like common hacking reasons, misconceptions, and behavior principles for reducing risks, along with practical tips to protect devices and accounts.
  2. The event features an open Q&A with cybersecurity expert Nguyen Dang Phuong, including a special gift for those who ask good questions and provide their email addresses.
  3. The livestream event is scheduled for July 19, 2020, at 10:00 AM GMT+7, providing valuable insights into cybersecurity and safe internet usage.

VietBay Sharing: Hỏi đáp về sử dụng Internet an toàn

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 10 Jul 20
🕹 Technology Cybersecurity
  1. Workshops on internet safety can face unexpected challenges like power outages or security concerns.
  2. Basic internet safety includes understanding common hacking reasons, dispelling misconceptions, and following risk-reducing behaviors.
  3. Engaging with experts in Q&A sessions can provide valuable insights on protecting devices and accounts from cyber threats.

Biển Đông trên mạng

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 25 May 20
🕹 Technology Cybersecurity
  1. The cyberspace is now a significant battlefield, where nations engage in cyber warfare to protect their interests beyond physical borders.
  2. China has been known to utilize hacker groups like Unit 61398 to conduct cyber espionage and theft of intellectual property from other countries.
  3. Vietnam has faced targeted cyber attacks, showcasing the importance of developing cybersecurity measures and fostering capabilities to defend national interests in the digital age.

Giải pháp truy vết tiếp xúc của BKAV

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 18 Apr 20
🕹 Technology Cybersecurity
  1. BKAV announced a breakthrough contact tracing solution called Bluezone. It emphasizes privacy, selective proximity tracking, and global collaboration.
  2. Vietnam's approach of building upon existing solutions like DP3T is praised. Publishing technical documentation and addressing shortcomings are suggested for transparency and improvement.
  3. Encouragement is given for BKAV to participate in discussions and share their solution to showcase Vietnam's competency.

Invalid curve attacks, explained

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 28 Sep 18
🕹 Technology Cybersecurity
  1. The Internet operates on 'donuts,' and many major platforms and technologies rely on them.
  2. Invalid curve attacks involve manipulating specific points on elliptic curves to compromise cryptographic systems.
  3. Understanding the nuances of point manipulation and curve properties is crucial in mitigating vulnerabilities in cryptographic protocols.

Vụ lộ 160 triệu tài khoản của VNG

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 01 May 18
🕹 Technology Cybersecurity
  1. A data breach of VNG exposed around 160 million accounts, including sensitive information like passwords and personally identifiable information (PII) like names, birthdates, emails, phone numbers, and more.
  2. The breached data was poorly protected, with passwords stored in an easily crackable format, allowing for over 124 million accounts to be decrypted in just two days using basic software on a standard laptop.
  3. The impact of such breaches can be severe, as many individuals use the same password across multiple accounts, making them vulnerable to further security risks if exposed in one breach.

Adi Shamir, Serge Vaudenay và Phong Nguyen ở Sài Gòn

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 23 Nov 17
🕹 Technology Cybersecurity
  1. The ISC 2017 event in Saigon had notable cryptography experts like Adi Shamir, Phong Nguyen, and Serge Vaudenay present, offering valuable insights in the field.
  2. Serge Vaudenay's padding oracle attack innovation significantly impacted the speaker's career, showcasing the importance of such advancements in the cybersecurity domain.
  3. Adi Shamir delivered a keynote speech at the event, a rare opportunity to hear from one of the pioneers in cryptography, emphasizing the significance of attending such talks.

Lỗ hổng WPA2/WiFi mới: khó khai thác, không nguy hiểm, không nên hoảng hốt

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 17 Oct 17
🕹 Technology Cybersecurity
  1. The WPA2/WiFi vulnerabilities disclosed are difficult to exploit and not very dangerous, so there's no need to panic or stop using WPA2 WiFi.
  2. Attackers need to be physically close to control the WiFi signal between the victim's device and the router, making this method less attractive compared to other easier attack methods.
  3. Even if data is decrypted, sensitive information like Gmail, Facebook, or bank account credentials are not exposed, as they are encrypted with different standards not related to WiFi.

Trả lời phỏng vấn đài Châu Á Tự Do về OceanLotus

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 18 May 17
🕹 Technology Cybersecurity
  1. Hacker working for a government have advantages like funding and time, they target political dissenters and sabotage in addition to monitoring individuals.
  2. A government-backed hacking group like OceanLotus targeting economic interests overseas marks a shift from traditional political targets.
  3. It's easier to hack into a system than to defend it; Vietnam's cybersecurity defenses have shown vulnerabilities over the years.

The Internet of Broken Protocols: Showcase #3

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 12 Aug 16
🕹 Technology Cybersecurity
  1. The pairing protocol may be vulnerable to man-in-the-middle attacks due to how codes are exchanged.
  2. The unlocking process is weak as it uses the same challenge each time, making it easier for attackers to intercept and relay responses.
  3. Improving the protocol involves ensuring bidirectional unique challenges and considering time limits for exchanges to enhance security.

Có một Biển Đông trên không gian mạng (tiếp theo và hết)

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 02 Aug 16
🕹 Technology Cybersecurity
  1. Invest in building a team of highly skilled cybersecurity experts as the key to ensuring national cybersecurity.
  2. Enhance cybersecurity education in schools and public awareness through media to promote safe internet usage and protect against cyber threats.
  3. Establish a Trusted Computing Base to increase the integrity of components and develop solutions for secure communication channels.

Trivial birthday attacks against HMAC

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 06 Apr 16
🕹 Technology Cybersecurity
  1. HMAC is vulnerable to birthday attacks, which can lead to forged signatures with lower cost.
  2. The second attack, duplicate signature attack, is security-relevant as it can produce two messages with the same tag, exploiting a server's validation system.
  3. Birthday attacks on HMAC can often be parallelized, and using HMAC-SHA256 is recommended for increased security.

Một nghiên cứu thất bại

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 30 Mar 16
🕹 Technology Cybersecurity
  1. Understand your tools and use them efficiently. Don't waste time trying to solve a problem in a complex way when a simple solution already exists.
  2. Experiment with your ideas without bias. Test all scenarios, even those that may disprove your initial hypothesis. Failure is part of the research process.
  3. Research and learn from existing studies before diving into a new project. Taking a few minutes to search for prior work can save time, money, and prevent investing in unfruitful ideas.

Exploiting the Diffie-Hellman bug in socat

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 03 Feb 16
🕹 Technology Cybersecurity
  1. The Diffie-Hellman bug in socat involved a vulnerability where the hard-coded DH p parameter was not prime, making the key exchange weaker and potentially insecure.
  2. Knowing the factors of the p parameter can allow one to solve the discrete log problem (DLP) on Z_p through the Chinese Remainder Theorem, which can be a powerful cryptanalysis tool.
  3. To exploit the bug, one can factor p completely, reduce DLP on Z_p to a smaller group, use Pollard's rho or index calculus, sniff socat traffic, and profit - highlighting the potential risks and methods involved in exploiting this vulnerability.

Exploiting the math/rsa bug in Go

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 15 Jan 16
🕹 Technology Cybersecurity
  1. The math/rsa bug in Go impacted crypto/tls and crypto/openpgp, prompting the need to change RSA private keys.
  2. Go uses Montgomery reduction and Chinese Remainder Theorem to speed up modular operations, but a small mistake led to leaking RSA private keys.
  3. By exploiting the bug, one can potentially obtain the RSA private key values and learn how multiple modular results can help determine values like 'q'.

Đầu tư an toàn thông tin thế nào cho đúng?

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 12 Jan 16
🕹 Technology Cybersecurity
  1. Using existing security solutions may not always guarantee safety, as they can also have vulnerabilities.
  2. Investing in people for information security is crucial, as they are the ones who can truly strengthen the system.
  3. Vietnam needs to focus on developing a skilled workforce in information security and investing in training and education to protect against potential cyber threats.

TetCon 2016 Slides Available for Download

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 08 Jan 16
🕹 Technology Cybersecurity
  1. Slides from TetCon 2016 are available for download on the conference website, with the exception of one speaker who chose not to release their slides.
  2. The TetCon 2016 conference at Sheraton had around 280 attendees, mostly male, indicating a need for more female participation in hacking events.
  3. Despite initial financial concerns, TetCon 2016 ended up with a positive net income, thanks to sponsorships and ticket sales, enabling plans for a larger and more diverse conference in the future.

Tại sao các công ty nên gửi người đến TetCon

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 26 Dec 15
🕹 Technology Cybersecurity
  1. Companies should invest in sending their employees to specialized conferences like TetCon to ensure their cybersecurity knowledge is up-to-date.
  2. Quality of software security in devices like FireEye is often not guaranteed, posing significant risks due to vulnerabilities like remote command execution.
  3. Establishing a culture of professional development by sponsoring employees to attend conferences and trainings is crucial for enhancing expertise in cybersecurity.

First batch of TetCon 2016 talks released tonight

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 10 Dec 15
🕹 Technology Cybersecurity
  1. The first batch of TetCon 2016 talks features young, talented hackers with diverse skills like reverse engineering, exploit writing, and cryptography.
  2. Over the years, the Vietnamese hacker community has evolved, with a new generation of exceptional individuals paving the way for groundbreaking discoveries.
  3. Acknowledgment is given to the pioneers of the community like rd, aquynh, lamer, and others who have been a source of inspiration and knowledge sharing for the community.

Bad Life Advice: Never Give Up - Replay Attacks Against HTTPS

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 08 Dec 15
🕹 Technology Cybersecurity
  1. Self-help advice of 'Never Give Up' can sometimes lead to vulnerabilities like replay attacks against HTTPS.
  2. Browsers like Chrome automatically retry failed requests, creating an opportunity for attacks by duplicating and replaying HTTPS traffic.
  3. TLS may protect against replay attacks, but there can still be mismatches between what it promises and what is actually deployed, requiring additional server defenses.

Đếm

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 12 Sep 15
🕹 Technology Cybersecurity
  1. It is important to quantify and highlight achievements when introducing individuals, whether they are programmers, entrepreneurs, or cybersecurity experts.
  2. When introducing a programmer, emphasize details like the lines of code written and where they are published, to showcase their experience and skills.
  3. For entrepreneurs, highlight their innovative ideas, successful ventures, and social media following to demonstrate their accomplishments and potential.

Vietnam: A Hacker's Report

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 21 May 15
🕹 Technology Cybersecurity
  1. Vietnam needs more and better engineers for information security, making certifications like Coursera and Udacity valuable.
  2. Buying turn-key security solutions and focusing on certifications like ISO 27001 may not ensure better security; training and recruiting engineers is crucial.
  3. Security engineers are key for system defense, small businesses can leverage cloud services, and end-to-end encryption is vital for sensitive data protection.

Google End-To-End

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 08 Jun 14
🕹 Technology Cybersecurity
  1. The creation of the End-To-End email encryption program involved significant effort and collaboration, highlighting the importance of teamwork in large software projects.
  2. Working on projects like encryption libraries can lead to gaining a wealth of new knowledge and skills through the experience.
  3. Understanding mathematical concepts like elliptic curve cryptography and number theory is crucial for creating secure encryption systems.

A quick audit of CryptoCat's elliptic curve crypto

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 20 Oct 13
🕹 Technology Cybersecurity
  1. CryptoCat's engineering practices appear lacking due to minimal testing and mixing different cryptographic functions, risking security vulnerabilities.
  2. Writing secure crypto code in JavaScript is challenging due to its lack of type checks and bounds access issues detection, requiring thorough testing and careful data type handling.
  3. Specific issues were found in CryptoCat's elliptic curve crypto library, such as private key generation mistakes and incorrect signature verification, highlighting potential security risks.

Công bố chương trình chính thức TetCon 2013

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 09 Jan 13
🕹 Technology Cybersecurity
  1. TetCon 2013 will feature 9 presentations grouped into themes like web security, system security, and malware.
  2. The conference will also include a roundtable discussion on how to become a cybersecurity engineer, addressing common questions from students and beginners.
  3. Organizers are seeking volunteers, especially students, fluent in English, offering benefits like free conference attendance and travel expenses covered.

Cập nhật chương trình TetCon 2013

Thái | Hacker | Kỹ sư tin tặc • 0 implied HN points • 18 Dec 12
🕹 Technology Cybersecurity
  1. The TetCon 2013 program has finalized with the selection of 9 presentations, including 4 guest talks.
  2. There is anticipation for excellent presentations by individuals named Son and Quynh at TetCon 2013.
  3. There is a decision-making dilemma between presenting on the CRIME attack or discussing the transition from Flickr's vulnerability to CRIME at TetCon 2013.