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Duo Security is now a part of Cisco

About Cisco

History of the Disclosure

Foreword by Haroon Meer

Authored by Thu Pham & Haroon Meer

Research Projects

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Deciphering the Messages of Apple’s T2 Coprocessor

Duo Labs explores the communication channel between macOS and the new T2 secure boot chip. We illuminate the XPC messaging protocol and provide tools to explore it for yourself.

Anatomy of Twitter Bots: Amplification Bots

Duo Labs study on amplification bots: what they are and how they operate.

Secure Boot in the Era of the T2

An in-depth look at the new secure boot feature found in T2 enabled Apple devices.

MDM Me Maybe: Device Enrollment Program Security

Duo Labs researchers show how an authentication weakness in Apple's Device Enrollment Program can be used to leak information and potentially enroll rogue devices in MDM servers.

Labs Presents: What's Happening With RFID Blocking Gear?

With all the reports about criminals lifting information off credit cards, access cards, and even passports, does it make sense to buy one of those RFID-blocking sleeves and wallets? Duo Labs finds...

Don't @ Me: Hunting Twitter Bots at Scale

Duo Labs releases their results of a three-month long research project on identifying Twitter bots and botnets at a large scale ahead of their talk at Black Hat USA 2018, along with plans to...

The Apple of Your EFI: Mac Firmware Security Research

The security research team at Duo known as Duo Labs has published a research paper on Apple’s EFI firmware security - learn more about their findings and recommendations, including a link to...

Beyond S3: Exposed Resources on AWS

It's not just S3 buckets that are exposed. Duo's security research team found a number of other publicly available Amazon Web Services (AWS) resources, including cloud backup and misconfigured...

Apple iMac Pro and Secure Storage

Duo's security team explores how the T2 coprocessor is being used by Apple and how it fits into the larger system security model, as well as how this may evolve in the future.

Microcontroller Firmware Recovery Using Invasive Analysis

Duo Labs security researchers show how to bypass microcontroller interfaces used for internet of things (IoT) devices - these invasive attacks require physical access to typical microcontrollers.

Reversing Objective-C Binaries With the REobjc Module for IDA Pro

Duo Labs performed an analysis of Objective-C binaries running on managed macOS endpoints in enterprise environments, using the Interactive Disassembler (IDA Pro) to perform disassembly and...

How Popular Web Services Handle Account Recovery

An examination of 12 popular web services show distinct differences in how different providers implement account recovery. They all have different options, but Facebook and GitHub offers some of...

Bluetooth and Personal Protection Device Security Analysis

The Duo Labs team analyzes the Bluetooth security of several different personal protection devices to shed light on how secure these devices are, and if they can be tracked remotely or reveal...

Understanding Bluetooth Security

When it comes to Internet of Things (IoT) security research, you may run into roadblocks examining Bluetooth pairing and encryption between older devices and new ones - this blog post explains what...

Examining Personal Protection Devices: Hardware and Firmware Research Methodology in Action

In a technical paper released today, Duo Labs details research into two personal protection devices based on ARM Cortex M microcontrollers. These devices allow wearers to notify people of their...

State of the Auth: Experiences and Perceptions of Multi-Factor Authentication

Duo Labs conducted a U.S.-census-representative survey to learn more about two-factor authentication (2FA) usage, how people learned about it, which technologies they’ve used as as a second factor,...

Phish in a Barrel: Hunting and Analyzing Phishing Kits at Scale

In a technical paper released today, Duo Labs details the results of a month-long experiment in which we hunted and analyzed over 3,200 unique phishing kits.

Bluetooth Hacking Tools Comparison

The Duo Labs security research team compares the features and capabilities of several Bluetooth scanners and software to best assist you in your security and IoT research.

Hunting Malicious npm Packages

Duo Labs analyzes npm packages and how attackers can use malicious packages to gain access to and control over systems.

New Open-Source Phishing Tools: IsThisLegit and Phinn

We're excited to announce two new open-source tools designed to help administrators prevent, manage, and respond to phishing attacks against their organization - IsThisLegit and Phinn.

Bug Hunting: Drilling Into the Internet of Things

In his latest bit of odd research, Duo Labs' Mark Loveless takes a closer look at IoT as he pulls apart a wireless drill, bit by bit.

Driving Headless Chrome With Python

Back in April, Google announced that it will be shipping Headless Chrome in Chrome 59. Since the respective flags are already available on Chrome Canary, the Duo Labs team thought it would be fun...

Flipping Bits and Opening Doors: Reverse Engineering the Linear Wireless Security DX Protocol

Here we explore the implementation of a legacy, but still actively marketed, wireless physical security system as well as how it undermines more advanced security controls. Several vulnerabilities...

HTTP/2 Peach Pit for Microsoft Edge

This peach pit implements the HTTP/2 protocol RFC-7540 and is targetted at Microsoft Edge. It has been run through about 150,000 iterations and traffic samples within this release were generated...

Duo in Space

This summer during DEF CON 24, Duo traveled to the Mojave Desert to launch a tricked-out weather balloon in pursuit of the first two-factor authentication push from the boundary of space. Find out...

Out-of-Box Exploitation: A Security Analysis of OEM Updaters

Shovelware, crapware, bloatware, “value added” - it goes by a lot of names - whatever you call it, most of it is junk (please, OEMs, make it stop). The worst part is that OEM software is making us...

Bring Your Own Dilemma: OEM Laptops and Windows 10 Security

Security research team, Duo Labs, dissects OEM laptops to find out how secure they are - learn more about the privacy and security issues they found with laptop default settings, data collection...

X-Ray 2.0: Vulnerability Detection for Android Devices

X-Ray is an app anyone can download that safely scans for vulnerabilities on your Android phone or tablet, allowing you to assess your current mobile security risk.

Dude, You Got Dell’d: Publishing Your Privates

Recently, Duo Labs security researchers found a few sketchy certificates on a Dell Inspiron 14 laptop we purchased last week to conduct a larger research project. And we weren’t the only ones - a...

WoW64 and So Can You

Today, the Duo Labs team is publishing a research paper on the limitations of Microsoft’s Enhanced Mitigation Experience Toolkit (EMET) when applied to processes running under WoW64. Time and time...

BACKRONYM MySQL Vulnerability

A new and serious vulnerability has been identified in a popular software library. How do we know it's serious? Because the vulnerability has a clever name, sweet logo, and as much hype as we can...

Did I get Adobed?

We’ve set up a site where you can check the leaked Adobe data for affected users in your organization. If you haven’t already, it would be a good idea to reset the passwords for any affected users,...

PayPal 2FA Bypass

Duo Security Researchers Uncover Bypass of PayPal’s Two-Factor Authentication

ReKey for Android

Earlier this month, RFP from BlueBox published a sneak preview of his upcoming BlackHat talk, detailing a vulnerability in the Android platform that affects nearly all Android devices. Soon after,...

Google Two-Factor Bypass

An attacker can bypass Google's two-step login verification, reset a user's master password, and otherwise gain full account control, simply by capturing a user's application-specific password (ASP).

VPN Hunter

VPN Hunter is a service that discovers and classifies the VPNs and other remote access services of any organization. Given their nature, remote access services inherently must hang off the public...

Did I Get Gawkered?

If you're an administrator who runs a website or service where your users are logging in with only a password, now is the time to beef up your security with some strong two-factor authentication....