Happy July and hope you all have a great, and safe 4th!
This Month’s meetup is July 16th.

I would also like to let you all know about a local multi-community #bbq. Please just us all for food and drink in August.

Details below.

Join forces with nine of Colorado's top cybersecurity groups for an epic community picnic!
Connect with folks from Colorado=Security, CSA, DenSec, (ISC)² Denver, ISACA, LIFT, OWASP, Popcykol, and WiCyS for an afternoon of food, networking, and fun. All are welcome!
🗓️ Date: Sat, August 23, 2025
⏰ Time: 11:30 AM - 3:30 PM
📍 Where: Berkeley Lake Park, Denver
Let's build community beyond the keyboard. See you there!
Hashtags: #ColoradoCybersecurity #DenverSecurity #CommunityPicnic #NetworkAndChill

Sign-up Form:
https://forms.gle/QKfcVFsq6VM58ckS6

Remember #denver that we have #BikeToWorkDay #Summer tomorrow! Sign-up to let them know you are participating, and check out the food or drink stations that you might have along the way.

https://www.drcog.org/bike-to-work-day Bike to Work Day Summer | Denver

Thanks for those that came out last night, and were able to make the change over to Finn’s.

We had a good turn out, so appreciate all the good conversations.

I am here at Finn’s Manor near the back.

Day of reminder && venue change

We are meeting up at Finn’s Manor that is just up the street on 29th / Larimer, as it has worked as good backup location.

https://www.finnsmanor.co/

Sorry, for the short notice I did not notice ImproperCity was closed for a private event today.

#CitySec #denver #security

Week of reminder for our monthly meetup.

This Wednesday, June 18th at 7pm. Normal place of @impropercity. It seems like we will have some heat, so come help me drink a beer.

I finally decided on my old router for stickers. Come offer your best sticker tribute to #DDWRT router

I am copying @bouldersec, just did not have any better ideas… also not as vintage of a router as their OG.
#citysec #security #denver

#Spotify seems to be down, might be a good time to take off your headphones, and talk to the person working next to you… or your cat.

Me, I will probably move to my downloaded music and continue to study. #DoAsISayNotAsIDo

Two days until #BSidesBoulder25 and only 15 tickets remain! Today we highlight, two #BSidesBoulder25 talks: Andrew Brandt's "Smashing Smishing by Quashing Quishing" and Eric Harashevsky's "Firmware Readout Bypass in STM92 (Don't put this in an alarm control panel).

Andrew's talk will examine QR-based phishing attacks, how attackers are exploiting QR codes and SMS to steal credentials and MFA tokens, and how a cross-industry collaboration between mobile vendors, telcos, and the infosec community could finally slam the door on mobile phishing. Think SafeBrowsing, but for QR scans! And we promise that our BSidesBoulder event QR codes will not redirect you to an Andrew-controlled C2 server.

Eric's talk will explore his adventure tinkering with an old STM92's firmware - the talk will explore his findings, reverse engineering the legacy microcontroller, bypassing firmware protections, and what that means for devices still hanging on your wall! Expect a live demo that is sure to excite your future hardware hacking journey.

#BSides #BSidesBoulder #CyberSecurity #Quishing #Smishing #MobileSecurity #PhishingDefense #HardwareHacking #FirmwareSecurity

Check out our full schedule at https://bsidesboulder.org/schedule/

Tickets are available for purchase for our 13 June event here: https://www.eventbrite.com/e/bsides-boulder-2025-registration-1290129274389

Incoming shorthand...Tomorrow's #BSidesBoulder25 is sold out! Walk-ins may be available, no guarantee of a shirt, official stickers, or sandwiches. TL;DR topical blurbs:

—🆕 Sticker swap table + mini-lock picking village.

—📢 Day of comms. We will use non-LinkedIn social media and QR codes at the event. @bsidesboulder
@infosec.exchange @bsidesboulder @bsidesboulder.bsky.social

—🅿️ Parking. Lot 414 is the primary. Lots 406 and 415 can be used for overflow. Details with a promo code and parking map available on our website.

—🍻Happy Hour. Location: Sanitas Brewing Company. Sponsored by TenEleven Technology. Please RSVP: https://events.1011vc.com/June132025

—🙏 2025 Sponsors. Thank you!! @rule4 Panther, @ARKA Group, LP, and Ten Eleven Ventures.

—🤝 2025 Partners. #MentalHealthHackers, #Cyversity-denver, @wicysorg, @kc7cyber, #BoulderFoodRescue, @DenverSec #OWASPDenver, #NoCoISSA.

This month’s meetup is next week, June 18th at 7pm!

Sorry, I have been a bit derelict with my updates this month, but nonetheless we will be at @impropercity waiting to chat over a beer.

I know @nanog was wrapping up in #denver this week. Anyone attend, love to hear about it.

#CitySec #meetup #security

Just got here out front of REI. Here is a picture for context, with my blue beauty.

I’m we are planning on a 10am meetup at REI, and then heading south down the Platte to Bear Creek Greebbelt. We will try and choose a place for lunch, and a beer on the way back closer to noon.

Quick reminder: this Sunday, June 1st we will be meeting up mid/late morning for a #Denver #bike ride. Meeting at downtown #rei as it is a great central location with great trail access.

Please let me know if you are interested.

This is not technology related exactly, but I thought people living in #denver proper might interested. #ebike #rebates dates for the rest of the year.

https://kdvr.com/news/local/denver-releasing-next-round-of-e-bike-rebate-vouchers-at-11-a-m/

I would like to thank those that made it out last night. We had a few new faces, so that is always nice to see.

Special thanks to @technick for the sticker drop off. Everyone loves stickers!

Also our next bike ride should be next on Sunday, June 1st. All are welcome to join.
Edit: totally forgot the picture!

I would like to thank those that made it out last night. We had a few new faces, so that is always nice to see.

Special thanks to @technick for the sticker drop off. Everyone loves stickers!

Also our next bike ride should be next on Sunday, June 1st. All are welcome to join.

Week of reminder!

We meet up in two short days at @impropercity, 7pm.

All are welcome to come hangout and chat. You can be in tech, security, enthusiast, or just want to chat with those kind of people.

#Denver #Colorado #security #citysec #meetup

Happy May to all, and hope you had a good May the 4th as well.

This is your monthly reminder for our meetup May, 21st at 7pm. @impropercity

As summer is upon us I would like to remind the community to get outside, and have some fun in the sun! We ride bikes and others below.

One of my favorite recommendations is free music. My two favorites are
1. Levitt Pavilion
https://www.levittdenver.org
2. Denver City Park Jazz
https://cityparkjazz.org

Just got to REI, in a green bike shirt. We will hangout for a few minutes to see who will be joining.