Gregg O'Brien @greggo_MSFT

Principal Security Researcher at Microsoft United States Joined August 2012

Tweets

1K
Followers

162
Following

359
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344

Gregg O'Brien @greggo_MSFT

4 weeks ago

Got to meet the legend, @NetworkChuck at Defcon this past weekend. Absolutely fantastic dude!

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I’m an Incident Responder on the AWS Customer Incident Response Team (CIRT). And I get asked a lot of questions, like: “Where do I even start with incident response in the cloud?” Here’s a beginner-friendly thread on AWS IR tips — with a few lessons I learned 🧵👇

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Gregg O'Brien @greggo_MSFT

4 months ago

Took a break from Twitter for a bit... Hopped on today and what the hell? This place has turned into a trap house. 🤢

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Noah Evans @ThisIsNoahEvans

a year ago

It’s not a Microsoft outage. Stop placing the blame on Microsoft. It’s a Windows crash caused by a fault in Crowdstrike security software. Understand the topic and don’t be loose with your language.

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Gregg O'Brien @greggo_MSFT

a year ago

#NewProfilePic

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💻 Sherrod DeGrippo 🛸 @sherrod_im

2 years ago

#DEFCON31 I’ve lost my beloved black silk bomber jacket. Size large. Brand : DSTLD. 100% silk. Silver zippers. 💵 $200 reward 💵 Please take it to defcon lost and found. Room 107 in Caesar’s forum. RT for help!

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Brooke @b4b027

2 years ago

Don't be a jerk #codeofconduct @OctopusGameDC #trackone

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Gregg O'Brien @greggo_MSFT

2 years ago

I hope they find who issued the bomb threat and force them to use Windows ME for the rest of their life. #Defcon31 #Defcon

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Gregg O'Brien @greggo_MSFT

2 years ago

Soon car safety ratings will need to be expanded to include cybersecurity as part of the safety rating. #Defcon31 #Defcon

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Gregg O'Brien @greggo_MSFT

3 years ago

The stat in this 2016 article are very much a reality today. csoonline.com/article/304611… Please don't be one of these people.

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Tanya Janca | Shehackspurple @shehackspurple

3 years ago

It’s #CyberMentoringMonday!!!! Are you looking for a professional mentor or to learn more about InfoSec? Are you experienced and willing to ‘give back’? Use this thread and hashtag to connect!

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Gregg O'Brien @greggo_MSFT

3 years ago

Note... EXCEL IS NOT A PASSWORD MANAGER. Other applications that aren't password managers include: Word, PowerPoint, OneNote, Sheets, Apple Numbers, any text editor (Notepad, Wordpad, Vi, Nano, etc). Feel free to add to the list...

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Gregg O'Brien @greggo_MSFT

3 years ago

With all of the about Lapsu$ coming out, IT leaders should be giving serious thought around how outsourcing strategy affects integrity of their organization.

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Gregg O'Brien @greggo_MSFT

4 years ago

Twitter feed is a hot mess this morning.

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Stephen Foskett @SFoskett

4 years ago

Don't upset Gollum! It's "on-premises" not "on-premise"!

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Gregg O'Brien @greggo_MSFT

4 years ago

People are always asking me "Gregg! What can I install to make our systems more secure?" Let's start with installing patches as prescribed by vendors.

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Joe @trk_rdy

4 years ago

I spend way too much time explaining what Microsoft Defender for Endpoint is. It's an umbrella of tools. Collaborating with some internal folks on a book. MDE, its components and their journey...etc. Lmk if you want us to touch on something in particular. #mde #atp #m365