Tasha Sumo (@DataSecChron) header
Tasha Sumo (@DataSecChron) profile picture

Senior Data Analyst ➡️ Cybersecurity. Atmospheric Sciences background. ISC2 CC certified. Documenting the pivot @ DataSec Chronicles. New blog posts Mon & Fri📊🌐

Maryland, USA
Joined May 2026
Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)Photo by Tasha Sumo (@DataSecChron)
👋🏽 Hi, I'm Tasha. As an atmospheric scientist, I spent years reading storm data for anomalies. Now I hunt them in network traffic. Same instinct, different domain. 📊 By day, I'm a Senior Data Analyst living in SQL, Python, and dashboards. I founded DataSec Chronicles to document my pivot into cybersecurity — the real learning journey. The wins, technical hurdles, and study strategies, from earning my ISC2 CC ✅ to working toward SC-900 and Security+. DataSec Chronicles is the story. DataSec Labs is where I put it into practice — interactive challenges and hands-on projects you can actually try. I've been online since dial-up screamed at you before letting you in and Y2K was going to end the world. 😂 The interwebs raised me; now I'm learning to defend them. Whether you're a data nerd, a cyber practitioner, a fellow career-changer, or just someone who appreciates good data hygiene and a warm cup of chai, welcome to my corner of the interwebs. What to expect: 🔍 Data & cyber insights — complex concepts made simple 📚 The pivot journey — study tips, resource reviews, and what I'm learning 🌱 Community — a space to learn out loud and grow together Drop a comment introducing yourself, what you're working on, or what brought you into tech 👇🏽 💜 datasecchronicles.com
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So we got hail today during a severe thunderstorm! 🌨️ Collected some after it stopped falling and the storm passed. Loud AF bouncing off the roof, windows, and cars, and cold AF to hold! 😂 This is the side of meteorology I'd rather appreciate from a distance. 😭
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One thing I've been thinking about with the Nvidia news is how much of the AI industry depends on one company. When a company plays such a central role in AI infrastructure, uncertainty can have ripple effects across the industry. It raises a bigger question about how much we rely on a single company to power so much of our technological progress.
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2,000 connections! 🎉💜 I set a goal to reach 2K by November 25, and somehow we got here almost two weeks early! From data analytics and cybersecurity to learning in public, building projects, and the occasional random thought 😂, I've enjoyed the conversations and connections along the way. Thank you to everyone who follows, reads, replies, shares, or simply stops by. Here's to more learning, building, and growing together! The tool changes, the question doesn't. 💜
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Be patient with yourself. You are still becoming. 💜
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📖 The Security Dictionary: PLAYBOOK Monday we talked about SOAR — how security teams connect tools, automate repetitive tasks, and coordinate responses. But how do analysts know what steps to follow when investigating a security alert? That's where playbooks come in. → Plain English: A playbook is a documented set of steps that guides security analysts through investigating and responding to specific security situations. → Think of it like: A response checklist. Instead of figuring out what to do from scratch every time, analysts have a structured process to follow while still using their judgment. → Example: An analyst receives an alert about suspicious login activity. A playbook might guide them to review authentication logs, check the source IP, look for related activity, document findings, and escalate if necessary. → Why I'm learning it: Coming from data analytics, I'm familiar with documented procedures and repeatable workflows. I'm learning how those same principles apply in a SOC, where consistency, communication, and timely decisions matter. And here's the connection to SOAR: Playbooks define the steps, while SOAR platforms can automate parts of those workflows. The more I learn about security operations, the more I see how important having a process is, not just knowing which tools to use. 💜 #Cybersecurity #TheSecurityDictionary #LearnWithMe
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Day 2 of my SOC Home Lab! Built a Python parser and extracted 2,843 Windows Security events from a public attack-simulation dataset. Found 7 failed logons across 7 accounts in 12 milliseconds. So far: no source IP in those events, no lockouts observed, and some successful logons preceded the failures. Day 3: Moving to TimescaleDB to correlate events and investigate what happened. Suspicious patterns are clues, not conclusions. Full write-up Friday! 💜
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1987 was a pretty good year. 😉💜
I'm at 1,969 followers, and my follower count is creeping toward the year I was born. 😂 Now I kind of want to catch that exact number for a screenshot. 😅
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Was I going to see #AvengersDoomsday? Absolutely. 😂 Now the tickets are officially SECURED!!! 🎟️💜 December can't come fast enough!
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Just attended the SANS webinar, “The SOC Analyst in the Age of AI,” with John Hubbard. This was one of those sessions where I kept connecting what I was hearing to my own experience as a Senior Data Analyst. A few takeaways that really stuck with me. 🧵💜
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1/ AI can help, but don't stop thinking. AI can gather context, interpret evidence, suggest responses, and draft reports. A polished answer doesn't mean it's correct. You still need to verify the evidence and understand how the conclusion was reached.
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I'm at 1,969 followers, and my follower count is creeping toward the year I was born. 😂 Now I kind of want to catch that exact number for a screenshot. 😅
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WANDA IS BACK!!!! 😭💜 AFTER ALL THIS TIME!!! MARVEL, YOU REALLY DID THAT!!! #VisionQuest
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My Boys, My Boys 🥹 #VisionQuest
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Yes you are Tommy Maximoff! #VisionQuest
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BILLY IS HERE!!! 😭💜 AND NEW JERSEY?! I’M FROM NEW JERSEY!!! 😂 Marvel, you really got me tonight! #VisionQuest
Oh they are going to look for Billy!! 😊😊 #VisionQuest
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Oh they are going to look for Billy!! 😊😊 #VisionQuest
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The #VisionQuest season finale is tonight! 👀 I'm curious to see how Marvel wraps this one up, especially with everything surrounding Vision, The Client, and Ultron. Also, hey Billy! Anyone else watching? 💜
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Day 1 of my SOC home lab Set up TimescaleDB on Tiger Cloud tonight! Next: load public Windows Security logs (Event IDs 4625 and 4624) and turn my Hacktoberfest Event ID Decoder from a reference tool into part of a detection pipeline. First surprise? No free tier at sign-up, just a 30-day trial. Full write-up Friday. Decoder below 👇🏽 #SOC #BlueTeam #BuildInPublic
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Here's the Event ID Decoder I built during Hacktoberfest. Now I'm working on taking it a step further. tash925.github.io/event-id-d…
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I swear, if that orange cat GIF were malware, half of X would be compromised by now. Everybody's copying and sharing it, and nobody seems to know where it started. 🐈💀
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I'm looking for the owner of an orange fighting cat. It appears to be a GIF, and it's spreading all over my timeline. I don't want that cat. I don't know that cat. Please stop sending me that cat. 😭😂
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