Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Analytics

Study: Browser Warnings Don't Work

Despite lock-and-key icons and pop-up alerts, banking users just keep on loggin' on, Harvard/MIT researchers say

The lock-and-key icon was broken. The site-authentication image was not there. A security message popped up, warning that the site was not properly certified.

And still, more than half of them entered a password and tried to log in.

That's the bottom-line finding of a new study from researchers at Harvard University and MIT, who conducted a live test of banking users to measure the effectiveness of browser-based authentication and anti-phishing features earlier this year. The research is scheduled to be presented at the IEEE Symposium on Security and Privacy next month.

In the study, 67 customers of a single bank were asked to perform common online banking tasks. As they logged in, they were presented with increasingly conspicuous visual clues that suggested they might be about to enter a phishing or other fraudulent site.

In the first test, the researchers "broke" the HTTPS security key. The lock-and-key icon at the bottom of the screen clearly was not in one piece, and the URL showed "http" rather than "https." After seeing these cues, all (100%) of the participants proceeded to log in anyway.

In the second test, the researchers removed the site authentication image from the users' browser screens. These images, typified by Bank of America's Sitekey, are supposed to authenticate the site for the user by presenting a pre-selected image that the user can recognize. The researchers did not reveal which site authentication image technology was involved in the test.

When both the HTTPS security key and the site authentication image were displayed in an unsecured state, only 3 percent of the participants stopped the logon process before typing in their passwords. The rest of the users -- 97 percent -- went ahead and logged on.

In the third test, the researchers presented the participants with a browser "warning page" stating that there was a problem with the target site's security certificate. Users were then given the option of closing the page or continuing to the Website.

In the presence of the broken HTTP key, a non-secure URL, an absent site authentication image, and a strongly-worded pop-up warning, 53 percent of the participants chose to continue to the banking site. Only 47 percent chose to abandon the logon before they had typed their passwords.

"We confirm prior findings that users ignore HTTPS indicators," the researchers say in the study. "No participants withheld their passwords when these indicators were removed. We also present the first empirical investigation of site authentication images, and we find them to be ineffective."

The tests were done on Microsoft's IE6 browser and, therefore, did not evaluate the effectiveness of the new anti-phishing features in IE7, where color-coded URLs and pop-up warning screens are a new feature. "Very few of the participants had seen the warning pages before," the researchers conceded. "Now that IE7 is widely available, users may see warning pages often enough to become complacent about heeding them."

But the study findings support some experts' skepticism that anti-phishing warnings, such as the new Extended Validation SSL, will have much impact on users' behavior. A study conducted by Microsoft and Stanford University in February has already suggested that EV SSL doesn't work. (See EV SSL: Dead on Arrival?)

"Prior studies have reported that few users notice the presence of HTTPS indicators such as the browser lock icon," the study notes. "Our results corroborate these findings and extend them by showing that even participants whose passwords are at risk fail to react as recommended when HTTPS indicators are absent."

— Tim Wilson, Site Editor, Dark Reading

Tim Wilson is Editor in Chief and co-founder of Dark Reading.com, UBM Tech's online community for information security professionals. He is responsible for managing the site, assigning and editing content, and writing breaking news stories. Wilson has been recognized as one ... View Full Bio

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
Edge-DRsplash-10-edge-articles
7 Old IT Things Every New InfoSec Pro Should Know
Joan Goodchild, Staff Editor,  4/20/2021
News
Cloud-Native Businesses Struggle With Security
Robert Lemos, Contributing Writer,  5/6/2021
Commentary
Defending Against Web Scraping Attacks
Rob Simon, Principal Security Consultant at TrustedSec,  5/7/2021
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
2021 Top Enterprise IT Trends
We've identified the key trends that are poised to impact the IT landscape in 2021. Find out why they're important and how they will affect you today!
Flash Poll
How Enterprises are Developing Secure Applications
How Enterprises are Developing Secure Applications
Recent breaches of third-party apps are driving many organizations to think harder about the security of their off-the-shelf software as they continue to move left in secure software development practices.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-36197
PUBLISHED: 2021-05-13
An improper access control vulnerability has been reported to affect earlier versions of Music Station. If exploited, this vulnerability allows attackers to compromise the security of the software by gaining privileges, reading sensitive information, executing commands, evading detection, etc. This ...
CVE-2020-36198
PUBLISHED: 2021-05-13
A command injection vulnerability has been reported to affect certain versions of Malware Remover. If exploited, this vulnerability allows remote attackers to execute arbitrary commands. This issue affects: QNAP Systems Inc. Malware Remover versions prior to 4.6.1.0. This issue does not affect: QNAP...
CVE-2021-28799
PUBLISHED: 2021-05-13
An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If exploited, the vulnerability allows remote attackers to log in to a device. This issue affects: QNAP Systems Inc. HBS 3 versions prior to v16.0.0415 on QTS 4.5.2; versions prior to v3...
CVE-2021-22155
PUBLISHED: 2021-05-13
An Authentication Bypass vulnerability in the SAML Authentication component of BlackBerry Workspaces Server (deployed with Appliance-X) version(s) 10.1, 9.1 and earlier could allow an attacker to potentially gain access to the application in the context of the targeted user’s acco...
CVE-2021-23134
PUBLISHED: 2021-05-12
Use After Free vulnerability in nfc sockets in the Linux Kernel before 5.12.2 allows local attackers to elevate their privileges. In typical configurations, the issue can only be triggered by a privileged local user with the CAP_NET_RAW capability.