• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Tech

The Laughably Bad Security at ‘Panama Papers’ firm Mossack Fonseca

By
David Z. Morris
David Z. Morris
Down Arrow Button Icon
By
David Z. Morris
David Z. Morris
Down Arrow Button Icon
April 9, 2016, 11:14 AM ET
PANAMA-PAPERS-MOSSACK-FONSECA
View of a sign outside the building where Panama-based Mossack Fonseca law firm offices are in Panama City, on April 4, 2016. A massive leak -coming from Mossack Fonseca- of 11.5 million tax documents on Sunday exposed the secret offshore dealings of aides to Russian president Vladimir Putin, world leaders and celebrities including Barcelona forward Lionel Messi. An investigation into the documents by more than 100 media groups, described as one of the largest such probes in history, revealed the hidden offshore dealings in the assets of around 140 political figures -- including 12 current or former heads of states. AFP PHOTO/ Rodrigo ARANGUA / AFP / RODRIGO ARANGUA (Photo credit should read RODRIGO ARANGUA/AFP/Getty Images)Photograph by Rodrigo Arangua AFP/Getty Images

There are many lessons to be learned from this week’s leak of the so-called “Panama Papers,” but here’s some real news you can use: If you’re a law firm dealing with the highly sensitive financial information of the world’s most powerful people, you should probably update your software more than once every seven years.

It’s still not clear precisely how a giant trove of documents detailing offshore tax shelters made its way out of the Panamanian law firm Mossack Fonseca, and into the hands of journalists around the world. But in an examination of the firm’s public-facing systems, experts speaking with Wired UK found them riddled with a jaw-dropping array of security vulnerabilities.

Get Data Sheet, Fortune’s technology newsletter.

Mosseck Fonseca’s client portal, according to Wired, runs on a version of Drupal last updated in 2013, and vulnerable to an array of attacks, including one that would allow attackers to execute commands on the site. Another weakness allows access to the site’s backend just by guessing the right web address.

Just as bad is the firm’s webmail portal, which runs Microsoft (MSFT) Outlook Web Access, and hasn’t been updated since 2009. The firm also did not encrypt its emails. As one expert speaking to Wired put it, “They seem to have been caught in a time warp.”

For more on the Panama Papers, watch our video:

In internal documents, Fonseca told customers that an email hack was at least partly to blame for the document leak. Given the very comprehensive nature of the data still being combed through by journalists worldwide, it seems unlikely that either email or a customer portal were the source of all of it. But if the firm’s internal data systems were maintained as negligently as its frontend, it might not have been a huge challenge to extract 26,000 pickup truck-loads worth of extremely sensitive secrets.

About the Author
By David Z. Morris
See full bioRight Arrow Button Icon

Latest in Tech

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Most Popular

placeholder alt text
North America
'I meant what I said in Davos': Carney says he really is planning a Canada split with the U.S. along with 12 new trade deals
By Rob Gillies and The Associated PressJanuary 28, 2026
20 hours ago
placeholder alt text
C-Suite
Fortune 500 CEOs are no longer giving employees an A for effort. Now they want proof of impact
By Claire ZillmanJanuary 28, 2026
1 day ago
placeholder alt text
Real Estate
Ryan Serhant thinks the American Dream was just a 'slogan created by banks,' but it was really about FDR, the Great Depression, and an economic crisis
By Sydney Lake and Nick LichtenbergJanuary 26, 2026
3 days ago
placeholder alt text
Personal Finance
Current price of silver as of Tuesday, January 27, 2026
By Joseph HostetlerJanuary 27, 2026
2 days ago
placeholder alt text
Commentary
Yes, you're getting a bigger tax refund. Your kids won't thank you for the $3 trillion it's adding to the deficit
By Daniel BunnJanuary 26, 2026
3 days ago
placeholder alt text
Success
Every U.S. Olympian is going home with $200,000, whether they medal or not, thanks to a billionaire's $100 million gift
By Jacqueline MunisJanuary 28, 2026
14 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.


Latest in Tech

NewslettersFortune Tech
Meta gets the love, Microsoft gets smacked
By Alexei OreskovicJanuary 29, 2026
34 minutes ago
Big TechRetail
Amazon is closing its futuristic Go and Fresh stores—showing logistics and tech aren’t enough to make old-school retail work
By Phil WahbaJanuary 29, 2026
3 hours ago
Big TechTesla
Tesla reveals $2 billion investment in Elon Musk’s xAI and officially kills the Model S and Model X
By Jessica MathewsJanuary 28, 2026
9 hours ago
Bald man with glasses and black shirt.
Big TechFortune 500
Microsoft demand backlog doubles to $625 billion thanks to OpenAI, but hefty spending and slower revenue growth spook investors
By Amanda GerutJanuary 28, 2026
10 hours ago
MagazineSamsung
How Samsung’s first-ever chief design officer is reinventing the electronics giant for the AI age
By Nicholas GordonJanuary 28, 2026
12 hours ago
Mark Zuckerberg, chief executive officer of Meta Platforms Inc
AIMeta
Meta beats on Q4 revenue as Mark Zuckerberg predicts a ‘major AI acceleration’ in 2026—with up to $135 billion in capex spending to match
By Sharon GoldmanJanuary 28, 2026
13 hours ago