Smart Contracts

OWASP Sofia Chapter ви кани на ново събитие, посветено на **AppSec, DevSecOps и киберсигурност в практиката**. Събитието ще се състои в офиса на нашите любезни партньори от [SumUp](https://www.sumup.com/en-us/) 🤝 **📌 Програма за 25 юни 2026:** * 19:00 ч. - Начало и въведение * 19:15 ч. - [Deyan Vuchev](https://www.linkedin.com/in/deyan-vuchev-401636127/) @ [SumUp](https://www.linkedin.com/company/sumup/) \- AI Security at the Fintech Frontier * 20:00 ч. - [Denitsa Taneva](https://www.linkedin.com/in/denitsa-taneva-b78423163/) @ [Wisebee](https://wisebee.ai/) \- Detected ≠ Exploitable: Rethinking Vulnerability Prioritization * 20:45 ч. - [Vladimir Atanasov](https://www.linkedin.com/in/vladimir-a-18968395/) @ [EGT](https://www.linkedin.com/company/egt-digital?originalSubdomain=bg) \- It's about Time * 21:30 ч. - Q&A / Networking * 22:00 ч. - Закриване Събитието ще се проведе на живо в офиса на SumUp. Имаме и нов сайт: **[www.owasp.bg](http://www.owasp.bg)** **Deyan Vuchev** е Cybersecurity Architect в SumUp с 15+ години в сигурността и силен опит в SIEM/XDR, автоматизация и облачна сигурност. Презентацията му показва как в SumUp контролират и наблюдават използването на AI tooling и agentic решения в реална fintech среда. **Denitsa Taneva** е Senior Security Engineer в WiseBee с фокус върху cloud security, vulnerability management, product security и AI рискове. Ще предложи нов поглед към приоритизацията на уязвимости — защо "открито" не значи "експлоатируемо". **Vladimir Atanasov** е Security Architect в EGT с над 10 години в сигурността. Ще разгледа пресечната точка между времето и сигурността — с практически примери от defend и attack перспектива. Включете се в общността и следете какво предстои: [Discord](https://discord.com/channels/849266967856414731/981867323298312223) · [LinkedIn](https://www.linkedin.com/company/107314221/) · [Facebook](https://www.facebook.com/owaspbg) Очакваме ви! 🚀

LFU looks deceptively close to LRU: both caches evict the "least useful" item. We'll look at how the ordering rule affects data structure design. We'll discuss the algorithmic tradeoffs behind LFU and compare different implementation strategies, ending with benchmarks in C++ and Rust. Date and time: **25th of June (Thursday), 6 pm** Location: **Beograđanka, Vidikovac, 22nd floor** Address: **Masarikova 5** Online: **[C++ Serbia YouTube](https://www.youtube.com/watch?v=PwmFvXE_K9I)** To join the community discussions, we are on: * [Discord](https://discord.gg/VDUn8YtHw8) * [Telegram](https://t.me/+l7NS0GrslBMwNzI0) * [Website](https://www.cppserbia.org/) See you!

OWASP Sofia Chapter ви кани на ново събитие, посветено на **AppSec, DevSecOps и киберсигурност в практиката**. Събитието ще се състои в офиса на нашите любезни партньори от [SumUp](https://www.sumup.com/en-us/) 🤝 **📌 Програма за 25 юни 2026:** * 19:00 ч. - Начало и въведение * 19:15 ч. - [Deyan Vuchev](https://www.linkedin.com/in/deyan-vuchev-401636127/) @ [SumUp](https://www.linkedin.com/company/sumup/) \- AI Security at the Fintech Frontier * 20:00 ч. - [Denitsa Taneva](https://www.linkedin.com/in/denitsa-taneva-b78423163/) @ [Wisebee](https://wisebee.ai/) \- Detected ≠ Exploitable: Rethinking Vulnerability Prioritization * 20:45 ч. - [Vladimir Atanasov](https://www.linkedin.com/in/vladimir-a-18968395/) @ [EGT](https://www.linkedin.com/company/egt-digital?originalSubdomain=bg) \- It's about Time * 21:30 ч. - Q&A / Networking * 22:00 ч. - Закриване Събитието ще се проведе на живо в офиса на SumUp. Имаме и нов сайт: **[www.owasp.bg](http://www.owasp.bg)** **Deyan Vuchev** е Cybersecurity Architect в SumUp с 15+ години в сигурността и силен опит в SIEM/XDR, автоматизация и облачна сигурност. Презентацията му показва как в SumUp контролират и наблюдават използването на AI tooling и agentic решения в реална fintech среда. **Denitsa Taneva** е Senior Security Engineer в WiseBee с фокус върху cloud security, vulnerability management, product security и AI рискове. Ще предложи нов поглед към приоритизацията на уязвимости — защо "открито" не значи "експлоатируемо". **Vladimir Atanasov** е Security Architect в EGT с над 10 години в сигурността. Ще разгледа пресечната точка между времето и сигурността — с практически примери от defend и attack перспектива. Включете се в общността и следете какво предстои: [Discord](https://discord.com/channels/849266967856414731/981867323298312223) · [LinkedIn](https://www.linkedin.com/company/107314221/) · [Facebook](https://www.facebook.com/owaspbg) Очакваме ви! 🚀

**Founders Running Club** (FRC) brings founders, investors, tech, creative people and startup enthusiasts together for weekly easy runs and networking. We like to be comfortable when we run and finish with coffee and conversations. Choose your pace or follow a pacer—pets, friends, family, are welcome. 🗓️ Launched in San Francisco, July 16, 2022 🌍 Now in 35+ cities 📅 Running + Networking events + Community **Join the community** [http://foundersrc.com/chats](http://foundersrc.com/chats) **Stay updated**: Instagram [http://instagram.com/foundersrc/](http://instagram.com/foundersrc/) Podcast [http://podcast.foundersrc.com/](http://podcast.foundersrc.com/) LinkedIn [http://linkedin.com/company/foundersrc/](http://linkedin.com/company/foundersrc/) Strava [http://strava.com/clubs/foundersRC](http://strava.com/clubs/foundersRC) Website [http://foundersrc.com/](http://foundersrc.com/)

Calling all working parents in Sofia! Join us for a Networking Brunch where we will focus on supporting each other in navigating the challenges of balancing work and family life. This event is open to working moms and dads, whether you are an expat, a stay-at-home mom transitioning back to work, or an entrepreneur juggling multiple roles. Let's share our experiences, exchange tips, and build a supportive community to help each other thrive in our professional and personal lives. Come connect with like-minded individuals, gain valuable insights, and leave feeling empowered and inspired to tackle whatever comes your way. **Don't miss this opportunity to network, learn, and grow together with Sofia Building Business Moms & Dads!**

LFU looks deceptively close to LRU: both caches evict the "least useful" item. We'll look at how the ordering rule affects data structure design. We'll discuss the algorithmic tradeoffs behind LFU and compare different implementation strategies, ending with benchmarks in C++ and Rust. Date and time: **25th of June (Thursday), 6 pm** Location: **Beograđanka, Vidikovac, 22nd floor** Address: **Masarikova 5** Online: **[C++ Serbia YouTube](https://www.youtube.com/watch?v=PwmFvXE_K9I)** To join the community discussions, we are on: * [Discord](https://discord.gg/VDUn8YtHw8) * [Telegram](https://t.me/+l7NS0GrslBMwNzI0) * [Website](https://www.cppserbia.org/) See you!

💰 **Build Passive Income with AI Ebooks – Masterclass** Build a passive publishing business with AI — from idea to income. ⚠️ Your spot is only held once you complete registration below. ### [🔗 SAVE YOUR SEAT](https://aiventurelab.org/product/AIEbookBusiness?city=Columbus&groupurlname=network-of-book-lovers-and-discussion-meetups&startgmtdatetime=2026-06-30T22:00:00Z) --- What's covered: - Publish across platforms for passive income - Format and list ebooks so they actually sell - Find profitable niches using AI research tools *One system. Recurring income.* ✍️

Join the Introverts of Columbus at Quarry Trails Metro Park for an afternoon walk in the Park. We'll meet near the parking lot area for about 15 minutes before heading out to chat and hike through the metro park. This will be a casually paced walk to allow people to get to know each other, and enjoy nature at the same time. 🚨🚨 Please note that there are multiple parking areas for the Quarry Trails Park, and please note the address in the event to get to the correct starting area! 🚨🚨

🤖 **Create a Working AI Agent – OpenClaw Workshop** Create a working AI agent from your browser in one session. No prior coding needed. ⚠️ Register via the link below to secure your place — RSVP won't do it. ### [🔗 CLAIM YOUR PLACE](https://aiventurelab.org/product/OpenClawMasterclass?city=Columbus&groupurlname=network-of-book-lovers-and-discussion-meetups&startgmtdatetime=2026-06-30T22:00:00Z) --- What you get: - A real, working AI agent by the end of the session - A browser-based setup you can use immediately - Hands-on experience building AI workflows from scratch *Don't just use AI. Build it.* 🤖

It’s time to take control of your mental health. How do you get rid of stress, anxiety and uncertainty? These emotions are buried deep in your reactive mind. Find out what the reactive mind is, and in the process find yourself. Have you ever suffered from a traumatic experience, a deep loss or been through a painful breakup? Has your ability to communicate suffered as a result? And after that, even though you "moved on" did you find that things were never quite the same? Have you ever looked at childhood photos, or reminisced your early life and wondered where that happiness and spark went? Are your emotions out of your own control? Have you ever felt, even if you aren’t aware of it, that possibly you are getting in your own way of your happiness and success? How does this affect your self-confidence? Find out what is at the root of all stress, anxiety, depression and self-doubt. Find out how and why you hold yourself back from achieving your goals and having the life you have dreamed of. As soon as you learn what is at the root of these unwanted conditions, you’ll see it is something you can DO something about. You will not be labeled or categorized at this MeetUp.

**Improving Office in Franklinton** Physical location: Improving Office 330 Rush Alley Suite #150 Columbus, OH 43215 Schedule: 6:00 p.m.: Socialize, eat, and drink. Improving will be providing pizza and beverages. 6:30 to 8:00 pm. Main meeting and presentation(s). Topic: This month Chris Pazsint will be talking about Agentic Coding. How does one use CLI Based Agents, and Agentic IDEs such as Cursor, Kiro, Antigravity? How to include agentic coding plugins for IDEs you already love such as Visual Studio Code. We meet on the last Monday of each Month. Presentations are given by members and friends of this group. If you would like to do a presentation (small or large) on a python topic, please contact Central OH Python at centralohpython@gmail.com

Feeling down? Sometimes depressed? Can't focus? Negativity & stress? Recent losses? Creativity in career and personal life hindered by mental blocks? Sometimes we never fully recover from traumatic experiences. Whether it was yesterday, last week or a year ago, traumatic experiences - a loss of a loved one, losing a job, a breakup - can leave you scarred. You talk about it and feel a little better, but it never goes away. After you hang up the phone, it's still there; the sadness, the cloud, the over-thinking, the worry, the guilt. You try to focus, but you're blocked. You try to look forward into new experiences, new relationships but a cloud is hanging over you, casting a shadow on what you once considered a bright, cheerful future. What happened to your courage? Your strength of character? You're 'why not' attitude? Whoever said 'time heals' must have had a special time machine, because after weeks, months, years, you're wondering - when exactly does that kick in? Sometimes it seems like drinking or drugs are the way to go. But they wear off, and now the problem is still there with added side effects from the drugs. At this free local Meetup event we will talk about: * What causes grief, anxiety and depression to become chronic. * Is it possible to regain your joy and happiness even after traumatic experiences? * How to break away from negativity and focus on the future * What are the steps to take to get control of your mind and your emotions? Learn about a safe, gentle, do-it-yourself counseling that can be done in the comfort of your own home. Let's explore safe, effective solutions for healing from traumatic experiences. Be sure to click on the red "Attend" button below to come to the event. We look forward to seeing you there. This group is sponsored by the Dianetics & Scientology Life Improvement Center.

📊 **Profit from Predictions – Polymarket Strategy** Stop guessing on Polymarket. Learn the analytical system that generates real profit. ⚠️ Complete registration below — RSVP alone doesn't reserve your spot. ### [🔗 CLAIM YOUR SPOT](https://aiventurelab.org/product/Polymarket?city=Columbus&groupurlname=network-of-book-lovers-and-discussion-meetups&startgmtdatetime=2026-06-30T22:00:00Z) --- What you'll learn: - A systematic approach to forecasting outcomes - How to identify high-value markets before the crowd - Polymarket strategies that generate consistent daily profit *The forecasters who win have a system. Get yours.* 🎯