Welcome to today's edition of Secret CISO, where we unravel the intricate web of cybersecurity challenges and breakthroughs shaping our digital landscape. In this issue, we delve into a series of alarming data breaches that have left personal information exposed, from Medicare's significant breach affecting 100,000 Americans to Louis Vuitton Korea's customer data leak. These incidents underscore the relentless threats facing both public and private sectors, highlighting the urgent need for robust security measures.

Meanwhile, the world of cybersecurity innovation is not without its heroes. We spotlight the remarkable story of Dylan, a 13-year-old prodigy who uncovered a vulnerability in Microsoft Teams, proving that age is no barrier to making a significant impact in the field. In parallel, Ethereum co-founder Vitalik Buterin proposes a new initiative to cap gas usage, aiming to bolster the network's security and stability.

On the vulnerability front, critical flaws in SimStudioAI and JWT Token Handlers reveal the persistent challenges in software security, emphasizing the importance of timely patches and vigilant monitoring. As we navigate these complex issues, the intersection of language and security emerges as a pivotal theme, with Olamide Eniola's work shedding light on how linguistic nuances can shape national security strategies.

Join us as we explore these compelling narratives, offering insights and strategies to fortify your defenses in an ever-evolving cyber world. Stay informed, stay secure.

Data Breaches

1. Medicare Data Breach May Have Compromised Personal Information of 100,000 Americans: A significant data breach involving Medicare has potentially exposed the personal information of 100,000 Americans. The breach has raised concerns about the security of sensitive health data and prompted Medicare to issue new cards with updated identifiers to enhance security. Beneficiaries are advised to review their Medicare statements for any unauthorized activity. Source: MSN, MyChesCo.
2. Louis Vuitton Korea Says Systems Breach Led to Customer Data Leak: Louis Vuitton Korea has confirmed a data breach that resulted in the leak of customer information. The company has taken measures to contain the breach and improve system security. This incident highlights the ongoing challenges luxury brands face in protecting customer data. Source: BusinessWorld Online.
3. NDPC Fines Multichoice Over N766m for Data Breach: Multichoice has been fined N766 million by the NDPC following an investigation into breaches of subscribers' privacy rights. The fine underscores the importance of data protection and the consequences of failing to safeguard personal information. Source: FRCN HQ.
4. Arbor Associates Data Breach Exposes Sensitive PHI & PII: A data breach at Arbor Associates has exposed sensitive personal health information (PHI) and personally identifiable information (PII). Affected individuals are urged to take action to protect themselves from potential identity theft. Source: Claim Depot.
5. Blue & Co. Data Breach Exposes Social Security Numbers: Blue & Co., an accounting and advisory firm, discovered a data breach where an unauthorized actor accessed and removed data from its servers. The breach exposed social security numbers, prompting the firm to enhance its security measures. Source: Claim Depot.

Security Research

1. Olamide Eniola: Shaping national security through language
2. : Olamide Eniola is making waves in the intersection of language and security, emphasizing the importance of perception in national security strategies. As a researcher and educator, Eniola's work highlights how linguistic nuances can influence security policies and public perception. Source:
3. The Guardian Nigeria News
4. .
5. Vitalik Buterin Proposes Gas Cap to Strengthen Ethereum Security and Stability
6. : Ethereum co-founder Vitalik Buterin, alongside researcher Toni Wahrstätter, has proposed EIP-7983, a new initiative to cap gas usage on the Ethereum network. This proposal aims to enhance the network's security and stability by preventing excessive resource consumption. Source:
7. CryptoRank
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9. Stalkerware seller exposed by sloppy SQL security
10. : A security researcher uncovered vulnerabilities in a stalkerware company's SQL security, exposing the company's data and operations. This incident highlights the critical need for robust security measures in protecting sensitive information from exploitation. Source:
11. The Register
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13. Top 10 Daily Cybercrime Brief by FCRF
14. : The Future Crime Research Foundation (FCRF) provides a daily summary of critical cybercrime incidents, powered by Algoritha Security Pvt. Ltd. These briefs offer insights into the latest threats and trends in the cybersecurity landscape. Source:
15. The420.in
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17. He's 13 and Hacked Microsoft Teams! The Story of Dylan, One of the Youngest Bug Hunters
18. : At just 13 years old, Dylan has become one of the youngest security researchers to work with the Microsoft Security Response Center. His discovery of a vulnerability in Microsoft Teams showcases the potential of young talent in the cybersecurity field. Source:
19. RedHotCyber
20. .

API Security

1. CVE-2025-7114 SimStudioAI sim Session route.ts POST missing authentication: A critical vulnerability was discovered in SimStudioAI sim, affecting the POST function of the Session Handler component. This flaw allows remote attackers to exploit missing authentication, potentially leading to unauthorized access. The vulnerability has been publicly disclosed, but the vendor has not responded to the disclosure. Source: Vulners.
2. CVE-2025-7107 SimStudioAI sim handleLocalFile path traversal: Another critical vulnerability in SimStudioAI sim involves the handleLocalFile function, which is susceptible to path traversal attacks. This can be exploited remotely, and a patch has been released to address the issue. Users are advised to apply the patch promptly to mitigate potential risks. Source: Vulners.
3. CVE-2025-7080 Done-0 Jank JWT Token Handler hard-coded password: A problematic vulnerability was identified in Done-0 Jank's JWT Token Handler, where hard-coded passwords are used. Although the attack complexity is high and exploitation is difficult, the vulnerability has been publicly disclosed. Continuous delivery with rolling releases is used, but no specific version details are available. Source: Vulners.
4. CVE-2025-7079 mao888 bluebell-plus JWT Token Handler hard-coded password: A similar issue was found in mao888 bluebell-plus, where the JWT Token Handler uses hard-coded passwords. The attack complexity is high, and exploitation is challenging, but the vulnerability has been disclosed publicly. Users should be aware of the potential risks associated with this flaw. Source: Vulners.

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Final Words

As we wrap up today's edition of Secret CISO, it's clear that the digital landscape is as dynamic as ever, with new challenges and innovations emerging daily. From the Medicare data breach affecting thousands of Americans to the young prodigy Dylan making waves in cybersecurity, each story underscores the critical importance of vigilance and innovation in our field.

Whether it's luxury brands like Louis Vuitton grappling with data leaks or Ethereum's Vitalik Buterin proposing new measures for network stability, the need for robust security protocols is universal. These incidents remind us that no organization is immune, and proactive measures are essential to safeguard sensitive information.

We also explored the fascinating intersection of language and security with Olamide Eniola's work, highlighting how perception can shape national security strategies. Meanwhile, vulnerabilities like those found in SimStudioAI and Done-0 Jank remind us of the technical challenges we face and the importance of timely patches and updates.

As we continue to navigate this ever-evolving landscape, let's stay informed and prepared. If you found today's insights valuable, please share this newsletter with your friends and colleagues. Together, we can foster a more secure digital world.

Thank you for joining us today. Stay safe, stay informed, and see you in the next edition of Secret CISO!