Salesforce.com is warning customers that they may be the targets of malicious software or phishing scams, after one of its employees was tricked into divulging a corporate password.
In a note to customers, Salesforce said that online criminals have been sending customers fake invoices and, starting just a few days ago, viruses and key logging software. The e-mails were sent using information that was illegally obtained from Salesforce.com.
Salesforce.com bills its Web-based CRM (customer relationship management) products as easier to use and maintain than traditional CRM software, but this latest development underlines the security risks that come with this more open model.
The problems began a few months ago, when a Salesforce.com employee fell for a phishing scam and divulged a company password that gave attackers access to a customer contact list. With this password, the criminals were able to obtain first and last names, company names, e-mail addresses and telephone numbers of Salesforce.com customers.
"As a result of this, a small number of our customers began receiving bogus e-mails that looked like Salesforce.com invoices," Salesforce.com said.
Some of those customers then fell victim to the scam and gave up their passwords to the criminals, too. When Salesforce.com started seeing malicious software being attached to these e-mails, the company decided to issue a general alert to its nearly 1 million subscribers.
According to the Washington Post, Suntrust Banks was one of the customers victimized by this scam.
Salesforce.com is working with law enforcement to resolve the problem, but in the meantime it is recommending that customers implement a number of security measures in order to cut down on the phisher's chance of succeeding.
Suggested actions include restricting Salesforce.com account access to users who are within the corporate network, phishing education or the use of stronger authentication techniques to log on to the Salesforce.com servers.
Salesforce.com declined to comment further on the matter. "Everything that they have to say about it is in this note," a spokesman with the company's public-relations agency said.