Posts

GOOGLE TAKES ITS FIRST STEPS TOWARD KILLING THE URL

/0 Comments/in /by

Google’s Chrome security team put forth a radical proposal: Kill off URLs as we know them. The researchers aren’t actually advocating a change to the web’s underlying infrastructure. They do, though, want to rework how browsers convey what website you’re looking at, so that you don’t have to contend with increasingly long and unintelligible URLs—and the fraud that has sprung uparound them. In a talk at the Bay Area Enigma security conference on Tuesday, Chrome usable security lead Emily Stark is wading into the controversy, detailing Google’s first steps toward more robust website identity.

Stark emphasizes that Google isn’t trying to induce chaos by eliminating URLs. Rather, it wants to make it harder for hackers to capitalize on user confusion about the identity of a website. Currently, the endless haze of complicated URLs gives attackers cover for effective scams. They can create a malicious link that seems to lead to a legitimate site, but actually automatically redirects victims to a phishing page. Or they can design malicious pages with URLs that look similar to real ones, hoping victims won’t notice that they’re on G00gle rather than Google. With so many URL shenanigans to combat, the Chrome team is already at work on two projects aimed at bringing users some clarity.

“What we’re really talking about is changing the way site identity is presented,” Stark told WIRED. “People should know easily what site they’re on, and they shouldn’t be confused into thinking they’re on another site. It shouldn’t take advanced knowledge of how the internet works to figure that out.”

The Chrome team’s efforts so far focus on figuring out how to detect URLs that seem to deviate in some way from standard practice. The foundation for this is an open source tool called TrickURI, launching in step with Stark’s conference talk, that helps developers check that their software is displaying URLs accurately and consistently. The goal is to give developers something to test against so they know how URLs are going to look to users in different situations. Separate from TrickURI, Stark and her colleagues are also working to create warnings for Chrome users when a URL seems potentially phishy. The alerts are still in internal testing, because the complicated part is developing heuristics that correctly flag malicious sites without dinging legitimate ones.

For Google users, the first line of defense against phishing and other online scams is still the company’s Safe Browsing platform. But the Chrome team is exploring complements to Safe Browsing that specifically focus on flagging sketchy URLs.

“Our heuristics for detecting misleading URLs involve comparing characters that look similar to each other and domains that vary from each other just by a small number of characters,” Stark says. “Our goal is to develop a set of heuristics that pushes attackers away from extremely misleading URLs, and a key challenge is to avoid flagging legitimate domains as suspicious. This is why we’re launching this warning slowly, as an experiment.”

Google says it hasn’t started rolling out the warnings to the general user population while the Chrome team refines those detection capabilities. And while URLs may not be going anywhere anytime soon, Stark emphasizes that there is more in the works on how to get users to focus on important parts of URLs and to refine how Chrome presents them. The big challenge is showing people the parts of URLs that are relevant to their security and online decision-making, while somehow filtering out all the extra components that make URLs hard to read. Browsers also sometimes need to help users with the opposite problem, by expanding shortened or truncated URLs.

“The whole space is really challenging because URLs work really well for certain people and use cases right now, and lots of people love them,” Stark says. “We’re excited about the progress we’ve made with our new open source URL-display TrickURI tool and our exploratory new warnings on confusable URLs.”

The Chrome security team has taken on internet-wide security issues before, developing fixes for them in Chrome and then throwing Google’s weight around to motivate everyone to adopt the practice. The strategy has been particularly successful over the past five years in stimulating a movement toward universal adoption of HTTPS web encryption. But critics of the approach fear the drawbacks of Chrome’s power and ubiquity. The same influence that has been used for positive change could be misdirected or abused. And with something as foundational as URLs, critics fear that the Chrome team could land on website identity display tactics that are good for Chrome but don’t actually benefit the rest of the web. Even seemingly minor changes to Chrome’s privacy and security posture can have major impacts on the web community.

Additionally, a trade-off of that ubiquity is being beholden to risk-averse corporate customers. “URLs as they work now are often unable to convey a risk level users can quickly identify,” says Katie Moussouris, founder of the responsible vulnerability disclosure firm Luta Security. “But as Chrome grows in enterprise adoption, rather than the consumer space, their ability to radically change visible interfaces and underlying security architecture will be reduced by the pressure of their customers. Great popularity comes not only with great responsibility to keep people safe, but to minimize churn in features, usability, and backwards compatibility.”

 

Google proposal for Chrome threatens ad blockers, developers say

/0 Comments/in /by

Google is working on a change to its Chrome browser this year that would limit how browser extensions built by outside developers can interact with websites.

A Google proposal that could make it harder to block web ads has prompted complaints from developers offering such tools.

Google is working on a change to its Chrome browser this year that would limit how browser extensions built by outside developers can interact with websites. It’s aimed at improving security and privacy for Chrome users. But some ad blocker software makers say the move will render their tools useless, while benefiting Google’s online advertising business.

“Whether Google does this to protect their advertising business or simply to force its own rules on everyone else, it would be nothing less than another case of misuse of its market-dominating position,” Jeremy Tillman, director of product at Ghostery, which builds a popular ad blocker, said in an email.

Google is still working with developers on the proposal and wants to make sure all “fundamental use cases” will still be possible, a spokeswoman for the company said in an emailed statement.

Google’s Chrome dominates the market for desktop web browsers. The Alphabet Inc. unit makes most of its revenue through online advertising, which relies on users seeing ads as they surf the web.