Reddit Hit With $20 Million UK Data Privacy Fine Over Child Safety Failings

Reddit Hit With $20 Million UK Data Privacy Fine Over Child Safety Failings

• Britain’s data privacy watchdog slapped online forum Reddit on Tuesday with a fine worth nearly $20 million for failures involving children’s personal information • The Informati

Cybersecurity · February 25, 2026 (updated February 26, 2026) · 1 min · 192 words
UK fines Reddit for not checking user ages aggressively enough

UK fines Reddit for not checking user ages aggressively enough

• A UK regulator today fined Reddit £14.5 million ($19.6 million) for not verifying the ages of users. • The UK Information Commissioner’s Office (ICO) alleged that the failure to

Consumer Tech · February 24, 2026 (updated February 25, 2026) · 2 min · 282 words
Reddit fined $19.6 million over age verification checks in the UK

Reddit fined $19.6 million over age verification checks in the UK

• Trending: Tesla sues California DMV over the term ‘Autopilot’ Samsung Galaxy Unpacked 2026 is Feb. • 25 Apple event on March 4: What to expect Hands-on with Google’s Pixel 10a iP

Consumer Tech · February 24, 2026 (updated February 25, 2026) · 2 min · 243 words
Reddit, porn sites fined by UK regulators over children's safety and privacy

Reddit, porn sites fined by UK regulators over children's safety and privacy

• Reddit, porn sites fined by UK regulators over children’s safety and privacy The UK’s online safety and privacy regulators are targeting companies that violate new age verificati

Threat Intelligence · February 24, 2026 (updated February 25, 2026) · 2 min · 330 words
UK fines Reddit $19 million for using children's data unlawfully

UK fines Reddit $19 million for using children's data unlawfully

• UK fines Reddit $19 million for using children’s data unlawfully February 24, 2026 09:54 AM 0 The UK Information Commissioner’s Office (ICO) has fined Reddit £14.47 million (over

Cybersecurity · February 24, 2026 (updated February 25, 2026) · 2 min · 305 words

The Algorithm That Saved Reddit 21% on BigQuery Slots

• The Algorithm That Saved Reddit 21% on BigQuery Slots Written by Michael Petro BigQuery serves as the central compute engine of Reddit’s data platform. • It powers ingestion, bat

Engineering Blogs · February 16, 2026 (updated February 25, 2026) · 2 min · 233 words

Contextual Relevance of Ads @ Reddit

• Written by Daniel Peters , Aleksandr Plentsov , and Anand Natu. • The Why One of Reddit’s core differentiators as a platform is the tremendous variety and depth of authentic huma

Engineering Blogs · February 9, 2026 (updated February 24, 2026) · 2 min · 227 words

From Fragile to Agile Part II: The Sequence-based Dynamic Test Quarantine System

• Reddit’s Flaky Test Quarantine Service (FTQS) evolved from static config to dynamic, sequence-based quarantine. • Static configuration caused bottlenecks as test suite grew, lead

Engineering Blogs · January 26, 2026 (updated February 24, 2026) · 1 min · 187 words

A Day in the Life of a Senior Technical Writer

• Starts day at 5am with meditation, journaling, coffee, word games, early quiet. • Walks office dog Otto, then tackles Developer Platform documentation for Reddit’s Devvit. • Coll

Engineering Blogs · January 19, 2026 (updated February 24, 2026) · 1 min · 187 words

Swapping the Engine Mid-Flight: How We Moved Reddit's Petabyte Scale Kafka Fleet to Kubernetes

• Written by Sky Kistler. • Our goal was straightforward: host Kafka on Kubernetes via Strimzi and deprecate our existing EC2-backed Kafka clusters, which in total comprised 500+ b

Engineering Blogs · January 12, 2026 (updated February 24, 2026) · 1 min · 206 words

Reddit ML Training: Smarter Scheduling, Faster Training with Kueue and GCP DWS

• Author: Paul Calley The landscape of machine learning and artificial intelligence is rapidly expanding, driving an immense demand for robust and scalable training platforms. • As

Engineering Blogs · December 15, 2025 (updated February 24, 2026) · 2 min · 271 words

How Reddit Built a LLM Guardrails Platform

• Written by Charan Akiri, with help from Dylan Raithel. • TL;DR We built a centralized LLM Guardrails Service at Reddit to detect & block malicious & unsafe inputs-including promp

Engineering Blogs · December 8, 2025 (updated February 24, 2026) · 2 min · 227 words

Choosing a vector database for ANN search at Reddit

• Written by Chris Fournier. • In 2024, Reddit teams used a variety of solutions to perform approximate nearest neighbour (ANN) vector search. • From Google’s Vertex AI Vector Sear

Engineering Blogs · November 18, 2025 (updated February 24, 2026) · 2 min · 230 words

Reddit's Home Feed on GPU: Unlock ML Growth and Efficiency

• Author: Cedric Blondeau TL;DR We migrated Reddit’s Home Feed Ranker from CPU to GPU to unlock scalability, efficiency, and enable further growth with new architectures like Trans

Engineering Blogs · November 10, 2025 (updated February 24, 2026) · 2 min · 231 words

Leveraging Bazel Multi-Platform RBE for Reddit's iOS CI

• By Brentley Jones Background The Reddit iOS project requires macOS hosts to build and test since it depends on Xcode/Apple SDKs. • Because of this, our CI agents also needed to r

Engineering Blogs · November 3, 2025 (updated February 24, 2026) · 2 min · 243 words

Reddit's Engineering Excellence Survey

• Author: Ken Struys Developer Experience (aka DevX) mission is to increase developer velocity at Reddit. • We build (and buy) highly leveraged tools used across the entire softwar

Engineering Blogs · October 28, 2025 (updated February 24, 2026) · 2 min · 267 words

Fredrick Lee (Reddit CISO) Answers Your Questions!

• Thanks to everyone who submitted questions for u/cometarystones ’ AMA! • We received so many great questions. • We’ve compiled Flee’s responses into this post. • Read along for t

Engineering Blogs · October 14, 2025 (updated February 24, 2026) · 1 min · 160 words

Ask your questions here for next week's AMA with Reddit CISO, Fredrick 'Flee' Lee

• Ever wanted to ask our CISO, Fredrick ‘Flee’ Lee, u/cometarystones , something about security, leadership, or why he always seems so chill even under pressure? • If so, now’s you

Engineering Blogs · October 9, 2025 (updated February 24, 2026) · 1 min · 198 words

Pragmatic, Compliant AI: Reddit's Journey to adopt AI in Enterprise Applications

• Written by Dylan Glenn. • Here at Reddit, the Enterprise Applications team shepherds much of the financial and operational infrastructure for our business, from invoicing custome

Engineering Blogs · September 29, 2025 (updated February 24, 2026) · 2 min · 263 words