Tech Talk | MeetUp Kraków #6: Data & LLM

Date: November 26, 2026, 18:00
🔵Location: HEVRE, Meiselsa Street 18, Krakow

We invite you to the Tech Talk | MeetUp Kraków #6: Data & LLM event, which will take place on November 26, 2026, at 18:00 at HEVRE, Meiselsa Street 18, Kraków.

Participation in the meeting is free for participants registered through Evenea.

❎ AGENDA ❎

17:30 - 18:00 Participant registration, ticket check on the first floor
18:00 - 18:15 Event opening and welcome
18:15 - 18:55 Presentation #1: Build Medallion Architecture in Databricks with Declarative Pipelines - Chandan Chakraborty
18:55 - 19:05 Break
19:05 - 19:45 Presentation #2: Prompt Injection vs. Your Database: Break It, Then Lock It - Damian Widera
19:45 Networking with pizza

❎ PRESENTATION ASBTRACT ❎

+ Build Medallion Architecture in Databricks with Declarative Pipelines - Chandan Chakraborty
Presentation about implementation of Lakehouse Architecture with Medallion Pipelines. The session and Demo will be focused on Data Engineers, looking for starting their early carrier in Data Engineering. If time permits, then we will showcase Genie as well.

+ Prompt Injection vs. Your Database: Break It, Then Lock It - Damian Widera
Giving an LLM agent access to a SQL database means giving that access to anyone who can type into the chat. Instructions like "never reveal other customers' data" in a prompt are not a security boundary.
In this session I attack a text-to-SQL agent running against SQL Server, live. First I exploit it: cross-tenant data leaks, access to restricted columns, indirect injection through a poisoned Notes field, destructive statements, and an unbounded query that burns resources. Then I fix each hole where it belongs, in the database: least-privilege roles on views, Row-Level Security driven by SESSION_CONTEXT, column-level permissions, query limits and audit logging. The same attacks are then replayed against the hardened setup.

❎ SPEAKERS ❎

+ Chandan Chakraborty (Capgemini)
Chandan Chakraborty having 15+ yrs experience in Data Analytics and Engineering with Microsoft Azure and Databricks

+ Damian Widera (Microsoft MVP)
Project Manager at Euvic. For the past 19 years, he has been involved in the design, development, and implementation of applications utilizing .NET, SQL Server, and Oracle platforms. His professional background also encompasses roles as a trainer, software developer, database administrator, technical writer, and business analyst. He is a co-author of the book "SQL Server 2008: Administration and Programming" and a frequent speaker at industry conferences. He holds several Microsoft certifications—including MCT, MCITP-DBA, MCITP-DD, and MCSD.NET—and has been awarded the Microsoft MVP title in the SQL Server (currently Data Platform) category every year since 2009.

❎SPONSOR ❎

❎ IMPORTANT INFORMATION❎

1. Please only register for the event if you are certain you will be able to attend.
2. Ticket validation takes place on the first floor of the HEVRE building from 17:30 PM to 18:00. After validation, please follow the instructions of the Organizer or building administrator.
3. It will not be possible to join the event after 18:00. Please be punctual.
4. While on site, please follow the instructions of the organizer, building administrator, and Capgemini staff.