Advisers and financial services firms are scrambling this week to avert any potential damage from the “Heartbleed” cybersecurity bug that has recently come to light and threatens millions of web users.
Encrypted channels for online communication that were thought to be secure have now been identified as being at risk due to a flaw in a piece of code in the OpenSSL — an open-source cryptographic library — said Arthur Bierer, chief technology officer at online lead-generation startup Vestorly Inc.
The compromised code is shared by many programs and can be found in many different products, which makes the threat so widespread, said Mr. Bierer, who previously worked on the engineering team at Microsoft and helped implement SSL on Internet Explorer.
“What's happening is that the private keys to the castle can be gotten hold of using this security flaw,” he said. “It allows a hacker to eavesdrop on the communication between clients, the adviser and their financial institutions."
“This is a really bad one,” Mr. Bierer said of the Heartbleed bug.
Mr. Bierer recommended that advisers and clients immediately change their banking passwords and then follow good Internet security guidelines: Passwords should be changed every 90 days, should not be shared and shouldn't be re-used for different websites.
Bill Winterberg, founder of FPPad, a technology consulting firm for financial advisers, agreed with the potential dangers of Heartbleed.
Calling it “bad news,” Mr. Winterberg said anyone who uses Internet services has potential vulnerability to the bug.
He recommended advisers and clients go to the filippo.io Heartbleed test and use the online tool to enter the domain name of any web service used, to identify whether the site is subject to attack.
“Fortunately, more and more providers are securing their services and actively fixing this,” Mr. Winterberg said. “Still, the advice I'm giving my clients is to assume you're affected. Run the filippo.io test, and if the test says there's no more vulnerability, it's fixed. Then change your password.”
He also urged advisers and clients to use multi-factor web verification whenever possible.
Custodians and other financial services firms are testing their platforms to see if they're vulnerable to the Heartbleed bug.
TD Ameritrade Institutional, for example, released a statement saying that TDAI is monitoring the situation and working with business partners to validate that they are secure as well.
“TD Ameritrade's websites and mobile applications do not utilize versions of OpenSSL that are susceptible to the recently announced Heartbleed vulnerability,” the custodian said in its statement.
Roel Schouwenberg, principal security researcher at IT security vendor Kaspersky Lab, warned that any service that has run or is running the vulnerable OpenSSL code suffers a risk of information disclosure.
“The vulnerable code has been out there for two years already, and exploitation of the vulnerability doesn't leave any traces in the logs on the server, making it hard to determine if exploitation ever occurred,” he wrote in an e-mail.
“An attacker could possibly get access to personal identifiable information, user names, passwords, Social Security numbers, financial records and even the cryptographic keys that are responsible for encrypting the network traffic between client and server,” Mr. Schouwenberg said.