Home Technology Crook made millions by breaking into execs’ Office365 inboxes, feds say

Crook made millions by breaking into execs’ Office365 inboxes, feds say

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Federal prosecutors have charged a man for an alleged “hack-to-trade” scheme that earned him millions of dollars by breaking into the Office365 accounts of executives at publicly traded companies and obtaining quarterly financial reports before they were released publicly.

The action, taken by the office of the US Attorney for the district of New Jersey, accuses UK national Robert B. Westbrook of earning roughly $3.75 million in 2019 and 2020 from stock trades that capitalized on the illicitly obtained information. After accessing it, prosecutors said, he executed stock trades. The advance notice allowed him to act and profit on the information before the general public could. The US Securities and Exchange Commission filed a separate civil suit against Westbrook seeking an order that he pay civil penalties and return all ill-gotten gains.

Buy low, sell high

“The SEC is engaged in ongoing efforts to protect markets and investors from the consequences of cyber fraud,” Jorge G. Tenreiro, acting chief of the SEC’s Crypto Assets and Cyber Unit, said in a statement. “As this case demonstrates, even though Westbrook took multiple steps to conceal his identity—including using anonymous email accounts, VPN services, and utilizing bitcoin—the Commission’s advanced data analytics, crypto asset tracing, and technology can uncover fraud even in cases involving sophisticated international hacking.”

A federal indictment filed in US District Court for the District of New Jersey said that Westbrook broke into the email accounts of executives from five publicly traded companies in the US. He pulled off the breaches by abusing the password reset mechanism Microsoft offered for Office365 accounts. In some cases, Westbrook allegedly went on to create forwarding rules that automatically sent all incoming emails to an email address he controlled.

Prosecutors alleged in one such incident:

On or about January 26, 2019, WESTBROOK gained unauthorized access to the Office365 email account of Company-1 ‘s Director of Finance and Accounting (“Individual-!”) through an unauthorized password reset. During the intrusion, an auto-forwarding rule was implemented, which was designed to automatically forward content from lndividual-1 ‘s compromised email account to an email account controlled by WESTBROOK. At the time of the intrusion, the compromised email account of Individual-I contained non-public information about Company-1 ‘s quarterly earnings, which indicated that Company-1 ‘s sales were down.

Once a person gains unauthorized access to an email account, it’s possible to conceal the breach by disabling or deleting password reset alerts and burying password reset rules deep inside account settings.

Prosecutors didn’t say how the defendant managed to abuse the reset feature. Typically such mechanisms require control of a cell phone or registered email account belonging to the account holder. In 2019 and 2020 many online services would also allow users to reset passwords by answering security questions. The practice is still in use today but has been slowly falling out of favor as the risks have come to be more widely understood.

By obtaining material information, Westbrook was able to predict how a company’s stock would perform once it became public. When results were likely to drive down stock prices, he would place “put” options, which give the purchaser the right to sell shares at a specific price within a specified span of time. The practice—colloquially known as short selling—allowed Westbrook to profit when shares fell after financial results became public. When positive results were likely to send stock prices higher, Westbrook allegedly bought shares while they were still low and later sold them for a higher price.

The prosecutors charged Westbrook with one count each of securities fraud and wire fraud and five counts of computer fraud. The securities fraud count carries a maximum penalty of up to 20 years’ prison time and $5 million in fines The wire fraud count carries a maximum penalty of up to 20 years in prison and a fine of either $250,000 or twice the gain or loss from the offense, whichever is greatest. Each computer fraud count carries a maximum five years in prison and a maximum fine of either $250,000 or twice the gain or loss from the offense, whichever is greatest.

The US Attorney’s office in the District of New Jersey didn’t say if Westbrook has made an initial appearance in court or if he has entered a plea.



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