JapanTech

Tengu Underground 11.0

Monthly hands-on cybersecurity & ethical hacking workshop by TenguSec: 7+ hrs of practical web/network security, no talks, lunch included.

When
Sat, June 20, 2026 · 11:00–18:00 JST
Where
Meeting Spot, 〒104-0061 Tokyo, Chuo City, Ginza, 3 Chome−10−1 銀座グランディールビル · In person
Region
Kanto (Tokyo)
Organizer
TenguSec
Language
JA/EN
Source
Meetup
Summary
Tengu Underground is a new monthly hands-on series from TenguSec, launched after the success of TenguCon 2.0 and demand for more practical sessions. It is built entirely around doing rather than listening: there are no speakers, just 7+ hours of hands-on hacking, experimentation, and shared learning, with lunch included and an optional group dinner afterward. The workshop covers the fundamentals of cybersecurity and ethical hacking in a beginner-friendly setting, including web application security, network security, and white hat techniques. Attendees work through various challenges, build things, and trade knowledge directly with one another. It suits anyone who joined past TenguSec gatherings like the 2600 Meeting or TenguCon, as well as newcomers wanting to go deeper into security. The exact venue is shared with registered attendees before the event, and all guests must be registered.
About the community

A hands-on cybersecurity and ethical hacking community focused on learning by doing. Sessions run monthly, with no speakers, an emphasis on shared experimentation, and a welcoming, beginner-friendly atmosphere for anyone interested in web and network security.

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