[Held on Saturday, May 16] ISF NET Engineer to Speak at 'Understanding the Latest Vulnerabilities!! MS Monthly Vulnerability Study Session' Hosted by Practical Security School 'SecuJuku'
An ISF NET security specialist will speak at a free seminar on May 16, hosted by SecuJuku, to explain how to properly triage and respond to the latest Microsoft zero-day vulnerabilities.
📋 Article Processing Timeline
- 📰 Published: April 22, 2026 at 19:00
- 🔍 Collected: April 23, 2026 at 00:02 (5h 2m after Published)
- 🤖 AI Analyzed: April 23, 2026 at 01:21 (1h 19m after Collected)
ISF NET, Inc. (Headquarters: Minato-ku, Tokyo / Representative Director: Yukiyoshi Watanabe, hereafter 'ISF NET') announces that a security specialist from the company will speak as an instructor at the free seminar 'Understanding the Latest Vulnerabilities!! MS Monthly Vulnerability Study Session' hosted by 'SecuJuku', a practical security school operated by Heatwave Inc. (hereafter 'Heatwave'), to be held on Saturday, May 16, 2026.
To combat increasingly sophisticated cyberattacks year by year, security knowledge is essential even in the IT infrastructure field. In this study session, a specialist from ISF NET, a partner company of 'SecuJuku', will take the stage to explain 'how to discern the vulnerabilities that truly matter in the field' to infrastructure engineers and security personnel.
◆ Study Session Agenda (Planned)
- Updates post-release of the previous month's vulnerability info
We will cover updates related to the previous month's vulnerabilities following the release of the MS patch.
- Overview
We will explain the overview, such as the number of vulnerabilities for which security patches were provided, and the number of zero-day vulnerabilities, if any.
- Exploited vulnerabilities
Explanation of zero-day vulnerabilities confirmed to have been exploited at the time of patch release.
- Unexploited but disclosed vulnerabilities
Explanation of vulnerabilities whose detailed information has been publicly disclosed, although exploitation has not been confirmed at the time of patch release.
- Other important vulnerabilities
Explanation of vulnerabilities rated as 'Critical' severity by MS, as well as vulnerabilities not rated 'Critical' but requiring attention.
- Other notes
Explanation of notes regarding patch application, such as known issues identified at the time of patch release.
* Please note that the schedule and content are subject to change.
◆ Details of 'Understanding the Latest Vulnerabilities!! MS Monthly Vulnerability Study Session'
Organizer
SecuJuku (Heatwave Inc.)
Date & Time
Saturday, May 16, 2026, 13:30 - 14:30
Format
Available both on-site and online
* On-site attendance has a capacity limit.
Venue (On-site): Heatwave IT Academy
9F KM Shinjuku Building, 2-46-5 Kabukicho, Shinjuku-ku, Tokyo 160-0021
* 30 seconds walk right in front of Seibu Shinjuku Station North Exit, 5 minutes walk from JR Shinjuku Station.
Capacity
On-site: First 40 people / Online: First 100 people
Target Audience
- Those interested in cybersecurity measures
- Those who want to catch the latest vulnerability information quickly
- Those who simply want to try attending a study session are also very welcome
Participation Fee
Free (Advance registration is required to participate)
Detailed Information / Registration
Please make a reservation via the event page.
https://white-hackers-lab.connpass.com/event/390308/
Registration deadline: Monday, May 11, 2026, 23:30
◆ Speaker Profile
Name: Koji Nonoshita
Affiliation: Technical Education Department, Engineer Development Division, ISF NET, Inc.
Biography:
With over 25 years of experience in specialized security companies, he has served as the head of technical departments at several major security vendors. His experience includes working on security projects for major Japanese banks and the government, professional services, and establishing the Japanese subsidiary of a US security vendor.
Additionally, he serves as the chief examiner of a Working Group at the Council of Anti-Phishing Japan, being active for over 10 years, and participates in several other security-related organizations.
Speaking Engagements and Activities:
Lectured on IPv6 and security products at Internet Week 2009.
Lectured on cybersecurity certification in IoT devices at GLOCOM Roppongi Conference, October 2018.
Lectured on the current state and challenges of medical device threats at the 19th Medical Device Forum in 2021.
Numerous other lectures.
Received a certificate of appreciation from JPCERT in June 2018 for his long-standing activities with the Council of Anti-Phishing Japan.
◆ Comment from the Instructor
'By listening to this, you can grow into an expert in handling Microsoft vulnerabilities!
Just because MS announces a severity as 'Critical' does not mean it always requires an emergency response.
I will teach you how to discern whether your organization needs to respond to a vulnerability, using the presence of a PoC and CVSS vector values as a reference.'
◆ About 'SecuJuku', a Practical Security School [Training White Hackers from Beginners]
A security school specialized in training white-hat hackers where you can learn cyberattack methods and defense techniques, with top-class prominent figures active in the security industry serving as instructors, operated by Heatwave Inc.
'SecuJuku' HP: https://www.heatwavenet...
To combat increasingly sophisticated cyberattacks year by year, security knowledge is essential even in the IT infrastructure field. In this study session, a specialist from ISF NET, a partner company of 'SecuJuku', will take the stage to explain 'how to discern the vulnerabilities that truly matter in the field' to infrastructure engineers and security personnel.
◆ Study Session Agenda (Planned)
- Updates post-release of the previous month's vulnerability info
We will cover updates related to the previous month's vulnerabilities following the release of the MS patch.
- Overview
We will explain the overview, such as the number of vulnerabilities for which security patches were provided, and the number of zero-day vulnerabilities, if any.
- Exploited vulnerabilities
Explanation of zero-day vulnerabilities confirmed to have been exploited at the time of patch release.
- Unexploited but disclosed vulnerabilities
Explanation of vulnerabilities whose detailed information has been publicly disclosed, although exploitation has not been confirmed at the time of patch release.
- Other important vulnerabilities
Explanation of vulnerabilities rated as 'Critical' severity by MS, as well as vulnerabilities not rated 'Critical' but requiring attention.
- Other notes
Explanation of notes regarding patch application, such as known issues identified at the time of patch release.
* Please note that the schedule and content are subject to change.
◆ Details of 'Understanding the Latest Vulnerabilities!! MS Monthly Vulnerability Study Session'
Organizer
SecuJuku (Heatwave Inc.)
Date & Time
Saturday, May 16, 2026, 13:30 - 14:30
Format
Available both on-site and online
* On-site attendance has a capacity limit.
Venue (On-site): Heatwave IT Academy
9F KM Shinjuku Building, 2-46-5 Kabukicho, Shinjuku-ku, Tokyo 160-0021
* 30 seconds walk right in front of Seibu Shinjuku Station North Exit, 5 minutes walk from JR Shinjuku Station.
Capacity
On-site: First 40 people / Online: First 100 people
Target Audience
- Those interested in cybersecurity measures
- Those who want to catch the latest vulnerability information quickly
- Those who simply want to try attending a study session are also very welcome
Participation Fee
Free (Advance registration is required to participate)
Detailed Information / Registration
Please make a reservation via the event page.
https://white-hackers-lab.connpass.com/event/390308/
Registration deadline: Monday, May 11, 2026, 23:30
◆ Speaker Profile
Name: Koji Nonoshita
Affiliation: Technical Education Department, Engineer Development Division, ISF NET, Inc.
Biography:
With over 25 years of experience in specialized security companies, he has served as the head of technical departments at several major security vendors. His experience includes working on security projects for major Japanese banks and the government, professional services, and establishing the Japanese subsidiary of a US security vendor.
Additionally, he serves as the chief examiner of a Working Group at the Council of Anti-Phishing Japan, being active for over 10 years, and participates in several other security-related organizations.
Speaking Engagements and Activities:
Lectured on IPv6 and security products at Internet Week 2009.
Lectured on cybersecurity certification in IoT devices at GLOCOM Roppongi Conference, October 2018.
Lectured on the current state and challenges of medical device threats at the 19th Medical Device Forum in 2021.
Numerous other lectures.
Received a certificate of appreciation from JPCERT in June 2018 for his long-standing activities with the Council of Anti-Phishing Japan.
◆ Comment from the Instructor
'By listening to this, you can grow into an expert in handling Microsoft vulnerabilities!
Just because MS announces a severity as 'Critical' does not mean it always requires an emergency response.
I will teach you how to discern whether your organization needs to respond to a vulnerability, using the presence of a PoC and CVSS vector values as a reference.'
◆ About 'SecuJuku', a Practical Security School [Training White Hackers from Beginners]
A security school specialized in training white-hat hackers where you can learn cyberattack methods and defense techniques, with top-class prominent figures active in the security industry serving as instructors, operated by Heatwave Inc.
'SecuJuku' HP: https://www.heatwavenet...