In response to Qassem Soleimani, commander of the Al-Quds Brigade, part of Iran's Islamic Revolutionary Guard Corps, the Iranian side has vowed revenge that would cost the United States.
In addition to military counter-attacks, U.S. security and several cybersecurity experts warned Iran was likely to retaliate against the U.S., the Associated Press reported on Thursday.
Security experts have cautioned that Iranian government-backed hackers are already one of the most ferocious in the world, with the potential to inject malware, triggering significant damage to the US public and private sectors.
The websites of a number of financial institutions, such as Bank of America, the New York Stock Exchange and Nasdaq Stock Exchange, were \"hacked\" in 2012 and 2013, and website services were disrupted. Two years later, the servers at the Sands Casino in Las Vegas were hacked and betting and hotel services were disrupted. The hacking was reportedly supported by Iran in response to US sanctions against Iran at the time.
John Hultquist, director of intelligence analysis at the U.S. cyber security firm Eye, said he was concerned about a repeat of the situation prior to the signing of the Iran nuclear deal and the chance for Iran to launch a damaging cyber attack.
Dragos Inc., which specializes in industrial control system security. Chief executive Robert M. Lee said Iranian hackers had been very active in trying to hack into utilities, factories and networks of oil and gas facilities.
In recent years, experts say, Iran has carried out numerous probes into key U.S. industrial systems in an attempt to gain access, but its destructive attacks are limited to Middle East targets.
Charity Wright, a former NSA analyst, believes Iran could launch cyber attacks against targets in Israel and the United States.
Although the U.S. grid is one of the safest in the world, many private companies and local governments have not invested enough in cybersecurity and are very vulnerable.
Christopher Krebs, a U.S. Homeland Security cybersecurity officer, alerts government agencies and businesses on social media to re-understand the perception of Iranian hackers' cyber attacks, ``closely watching critical systems'' .
Suleimani is one of Iran's most influential generals, in charge of the Islamic Revolutionary Guard Corps overseas operations, with a strong stance. His death could trigger bitter retaliation by Iran and the armed forces it supports in the Middle East.
Iran has previously said that the u. s. military killing sulemani is typical of state terrorism, is a violation of the basic principles of international law, especially the un charter of criminal acts.