ChiSec

The mother of all CitySecs, coming to you (very not) live from Chicago, IL. Woman-run security meetup. See also infosec dot exchange forward slash at chisec

[ChiSec @ChiSec]

Moved to the blue butterfly site.

[Nebula Security @nebusecurity]

Here goes nginx-quicburst (CVE-2026-42530), a new RCE in Nginx discovered by our security agent VEGA and demonstrated by Nebula Security.

This is only the third NGINX vulnerability since 2014 to receive NGINX’s “major” severity rating. If you use Nginx 1.31 with QUIC enabled, we recommend upgrading to the latest version.

This bug has been patched in the latest Nginx release. We will publish the technical writeup, including the ASLR bypass, on July 18 together with the previous nginx-poolslip writeup.

[ChiSec @ChiSec]

ChiSec is today at Kaiser Tiger. 1415 W Randolph. 18:30ish. Weather's pretty great for a hang, too. Looking forward to seeing your beautiful faces!

[ChiSec @ChiSec]

See you at Kaiser Tiger tomorrow!

[ChiSec @ChiSec]

Annoying nagging reminder, Tuesday Version, that ChiSec is THIS THURSDAY (18 June) at 18:30 (ish) at Kaiser Tiger (1415 W Randolph) in the Bier Garten.

[ChiSec @ChiSec]

Come to Kaiser Tiger (1415 W Randolph) this Thursday at 18:30ish! We have the outdoor space. Let's enjoy the weather before it gets too 🥵

[ChiSec @ChiSec]

Next ChiSec is 18 June at Kaiser Tiger (1415 W Randolph).

[Kirk @KirkDerpca]

A Day In Cybercrime: May 26, 2026. 5 news stories, 59 npm malware advisories, 31 ransomware claims, 2763 C2 observations, 2409 unique C2 hosts. https://t.co/L1eoGzauZI

[ChiSec @ChiSec]

bacon

[ChiSec @ChiSec]

it’s warm. and something smells delicious.

[ChiSec @ChiSec]

Come to Kaiser Tiger today at 18:30! 1415 W Randolph.

[ChiSec @ChiSec]

ChiSec is tomorrow at Kaiser Tiger. 1415 W Randolph. 18:30. I am too tired to say something perky so you can imagine whatever level of enthusiasm suits your current mood.

Looking forward to seeing everyone <3

[ChiSec @ChiSec]

https://t.co/90ksYxro65

[ChiSec @ChiSec]

See you day after tomorrow at Kaiser Tiger (1415 W Randolph). We'll be in the Beer Garden starting around 18:30. Forecasted high for Thursday is 61F. Bring a jacket.

[Het Mehta @hetmehtaa]

my company got breached

the attacker had access for 11 days

on day 3 he emailed our IT helpdesk
complained that the VPN was slow

our helpdesk reset his password
upgraded his access tier to fix the "connectivity issue"

and closed the ticket as resolved

CSAT score: 5 stars

we found this in the logs during forensics

the attacker had rated our IT support
excellent

[ChiSec @ChiSec]

Meet up this Thursday, 21 May at 18:30. We will be at Kaiser Tiger in the beer garden. 1415 W Randolph.

Bring a jacket, just in case.

[ChiSec @ChiSec]

Meet up this Thursday, 21 May at 18:30. We will be at Kaiser Tiger in the beer garden. 1415 W Randolph.

Bring a jacket, just in case.

[ChiSec @ChiSec]

Tonight! Kaiser Tiger Beer Garden!

1415 W Randolph. 18:30.

Fries! Beer! Noise!

[ChiSec @ChiSec]

April has 5 Thursdays. This week is the third of that count. Come hang out at Kaiser Tiger. Maybe it won't rain. Until then, have a splendid week!

[ChiSec @ChiSec]

Looking forward to seeing y'all tonight at Kaiser Tiger (1415 W Randolph).