Chris Ng chrisng

Subject: Apologies for the downtime, but we're coming back stronger.

Dear Simon,

As you may already know, BrowserStack experienced an attack on 9th November, 2014 at 23:30 GMT during which an individual was able to gain unauthorized access to some of our users’ registered email addresses. He then tried to send an email to all our registered users, but he was only able to reach less than 1% (our estimate is 5,000 users). The email contained inaccurate information, even claiming that BrowserStack would be shutting down.

When we realized this, our only concern was to protect our users. This involved temporarily taking down the service, as we scrutinized each component carefully. This inconvenienced our users for several hours, and for that we are truly sorry.

What happened?

	Latency Comparison Numbers
	--------------------------
	L1 cache reference 0.5 ns
	Branch mispredict 5 ns
	L2 cache reference 7 ns 14x L1 cache
	Mutex lock/unlock 25 ns
	Main memory reference 100 ns 20x L2 cache, 200x L1 cache
	Compress 1K bytes with Zippy 3,000 ns 3 us
	Send 1K bytes over 1 Gbps network 10,000 ns 10 us
	Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD

	#!/bin/bash
	#
	# PostgreSQL Backup Script Ver 1.0
	# http://autopgsqlbackup.frozenpc.net
	# Copyright (c) 2005 Aaron Axelsen <[email protected]>
	#
	# This script is based of the AutoMySQLBackup Script Ver 2.2
	# It can be found at http://sourceforge.net/projects/automysqlbackup/
	#
	# The PostgreSQL changes are based on a patch agaisnt AutoMySQLBackup 1.9

	#!/bin/bash
	#
	# Bash script to setup headless Selenium (uses Xvfb and Chrome)
	# (Tested on Ubuntu 12.04)

	# Add Google Chrome's repo to sources.list
	echo "deb http://dl.google.com/linux/chrome/deb/ stable main" \| sudo tee -a /etc/apt/sources.list

	# Install Google's public key used for signing packages (e.g. Chrome)
	# (Source: http://www.google.com/linuxrepositories/)

	#!/bin/sh

	# Some things taken from here
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx

	# Set the colours you can use
	black='\033[0;30m'
	white='\033[0;37m'
	red='\033[0;31m'
	green='\033[0;32m'

	# -- mode: ruby --
	# vi: set ft=ruby :
	# David Lutz's Multi VM Vagrantfile
	# inspired from Mark Barger's https://gist.github.com/2404910

	boxes = [
	{ :name => :web, :role => 'web_dev', :ip => '192.168.33.1', :ssh_port => 2201, :http_fwd => 9980, :cpus =>4, :shares => true },
	{ :name => :data, :role => 'data_dev', :ip => '192.168.33.2', :ssh_port => 2202, :mysql_fwd => 9936, :cpus =>4 },
	{ :name => :railsapp, :role => 'railsapp_dev', :ip => '192.168.33.3', :ssh_port => 2203, :http_fwd => 9990, :cpus =>1}
	]

	update-rc.d logstash-shipper defaults
	update-rc.d logstash-reader defaults

	require 'rubygems'
	require 'mechanize'

	FIRST_NAME = 'FIRST_NAME'
	LAST_NAME = 'LAST_NAME'
	PHONE = 'PHONE'
	EMAIL = '[email protected]'

	PARTY_SIZE = 2
	SCHEDULE_RANGE = { :start_time => '19:00', :end_time => '20:30' }