Nearly one million new cyber threats were released online every day in 2014, with five out of six large companies globally targeted, according to a new report.
Compiled by anti-virus and web security experts Symantec, the firm's Internet Security Threat Report also found 17 per cent of all apps on Google's Android platform were malicious software, or malware, in disguise.
The report also announced an increase in ransomware - where hackers take over a user's device or files and demand money in order to release them. Symantec says this activity increased by 113 per cent in 2014.
The report comes after a year of high profile cyber attacks and viruses, including the Heartbleed vulnerability, first detected a year ago, that left millions of websites open to attack and lead to the hacking of sites including Yahoo and Mumsnet.
Other high-profile cases included the attack on Sony Pictures that reportedly originated in North Korea in retaliation to film The Interview, which depicted the assassination of Kim Jong-un. E-commerce giant eBay was also the victim of a cyber breach in 2014.
This appears to tally up with Symantec's findings, which reports that five out of six large companies were targeted by cyber criminals last year, a rise of 40 per cent compared to the previous year.
Kevin Haley, director of Symantec Security Response, said: "Attackers don't need to break down the door to a company's network when the keys are readily available.
"We're seeing attackers trick companies into infecting themselves by Trojanising software updates to common programs and patiently waiting for their targets to download them - giving attackers unfettered access to the corporate network."
The report also found a large number of viruses and potentially harmful pieces of software are being circulated inadvertently on social media, by users who are unaware of the full content of what they are sharing.
"Cyber criminals are inherently lazy; they prefer automated tools and the help of unwitting consumers to do their dirty work," Haley added.
"Last year, 70 per cent of social media scams were shared manually, as attackers took advantage of people's willingness to trust content shared by their friends."
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