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Black & White Path
Black & White Path
Mar 23, 2026 · Information Security

FBI Warns: Russian Hackers Launch Massive Phishing Attack on WhatsApp and Signal Users

The FBI and CISA have issued an urgent alert that Russian-linked threat actors are conducting large‑scale phishing campaigns against WhatsApp and Signal users, using social‑engineering tricks such as fake support messages, code‑request scams, and malicious links to hijack accounts and monitor communications.

FBIWhatsAppinformation security
0 likes · 6 min read
FBI Warns: Russian Hackers Launch Massive Phishing Attack on WhatsApp and Signal Users
Black & White Path
Black & White Path
Feb 13, 2026 · Industry Insights

India’s Supreme Court Bars WhatsApp Data Sharing; Guangdong Police Bust High‑Altitude Drone Violation

The Indian Supreme Court ruled that WhatsApp cannot compromise user privacy through data‑sharing mandates, highlighting broader data‑governance trends, while Chinese authorities in Guangdong arrested a drone operator who flew an illegally modified UAV to 8,000 m, endangering civil aviation and exposing cyber‑crime links.

Drone RegulationIllegal Drone FlightIndia Supreme Court
0 likes · 6 min read
India’s Supreme Court Bars WhatsApp Data Sharing; Guangdong Police Bust High‑Altitude Drone Violation
dbaplus Community
dbaplus Community
Jan 12, 2024 · Backend Development

How WhatsApp Scaled to 450 M Daily Users with Only 32 Engineers

This article outlines Jan Koum's WhatsApp journey and the eight engineering principles—single responsibility, Erlang stack, reuse of open source, cross‑cutting concerns, diagonal scaling, continuous feedback, load testing, and a small team—that enabled massive scalability with a tiny engineering group.

Backend EngineeringErlangLoad Testing
0 likes · 7 min read
How WhatsApp Scaled to 450 M Daily Users with Only 32 Engineers
ITFLY8 Architecture Home
ITFLY8 Architecture Home
Apr 12, 2018 · Backend Development

How WhatsApp Scales to 450 Million Users with Just 32 Engineers

This article examines WhatsApp's high‑reliability architecture, detailing how a tiny team of 32 engineers leverages Erlang, FreeBSD, and custom BEAM patches to support hundreds of nodes, thousands of cores, and hundreds of terabytes of memory for over 450 million active users.

ErlangScalabilityWhatsApp
0 likes · 22 min read
How WhatsApp Scales to 450 Million Users with Just 32 Engineers
Art of Distributed System Architecture Design
Art of Distributed System Architecture Design
Sep 22, 2016 · Industry Insights

How WhatsApp Scaled to 450 Million Users with Erlang: Architecture and Lessons

This article dissects WhatsApp’s high‑reliability architecture that supports 450 million users, detailing its Erlang‑based backend, hardware choices, scaling techniques, monitoring tools, and the engineering lessons learned from pushing a single server to two‑million concurrent connections.

Backend ArchitectureErlangOperations
0 likes · 19 min read
How WhatsApp Scaled to 450 Million Users with Erlang: Architecture and Lessons
Art of Distributed System Architecture Design
Art of Distributed System Architecture Design
Sep 20, 2016 · Operations

WhatsApp Scaling Architecture: Lessons from Two Years of Growth

Over the past two years WhatsApp has dramatically expanded its user base, hardware, and traffic while maintaining a tiny engineering team, highlighting the challenges of massive scalability, Erlang‑based distributed design, Mnesia database bottlenecks, decoupling strategies, and operational patches required to keep the service reliable.

ErlangMnesiaOperations
0 likes · 15 min read
WhatsApp Scaling Architecture: Lessons from Two Years of Growth
Architect
Architect
Jun 26, 2016 · Backend Development

WhatsApp Architecture: High‑Scalability Design and Engineering Insights

The article analyzes WhatsApp's high‑scalability backend architecture, detailing its Erlang‑based server stack, massive user statistics, hardware deployment, custom protocols, performance‑tuning tools, and lessons learned from scaling to billions of messages with a tiny engineering team.

Backend EngineeringErlangPerformance Optimization
0 likes · 20 min read
WhatsApp Architecture: High‑Scalability Design and Engineering Insights
Art of Distributed System Architecture Design
Art of Distributed System Architecture Design
May 27, 2015 · Backend Development

WhatsApp’s High‑Reliability Architecture for 450 Million Users

This article examines WhatsApp’s high‑reliability architecture that supports 450 million users, detailing its Erlang‑based backend, hardware choices, scaling techniques, performance metrics, monitoring tools, and lessons learned from achieving up to two million concurrent connections on a single server.

ErlangScalabilityWhatsApp
0 likes · 18 min read
WhatsApp’s High‑Reliability Architecture for 450 Million Users
Art of Distributed System Architecture Design
Art of Distributed System Architecture Design
Mar 25, 2015 · Operations

How WhatsApp Scaled to 400 Million Daily Messages with a 10‑Engineer Team

This article examines how WhatsApp grew its user base, message volume, and infrastructure dramatically over two years while keeping the engineering team at ten, detailing the architectural choices, Erlang‑based stack, hardware scaling, decoupling strategies, and the operational challenges that led to both performance gains and a major outage.

Distributed SystemsErlangMnesia
0 likes · 15 min read
How WhatsApp Scaled to 400 Million Daily Messages with a 10‑Engineer Team