According to the networking solutions major, overall vulnerability and threat levels reached their highest in 2013, ever since it began tracking in May 2000.
Its 2014 Annual Security Report (ASR) reveals that 2013 was a "particularly bad year", with cumulative annual threat alert levels increasing by 14 per cent since 2012.
Organisations in India are also witnessing a huge growth in cyber attacks and intrusions and the country faces shortage of about 4 lakh trained cyber security professionals.
He added the ASR states that in the face of increased attack surface exposures, exponential improvements in attack sophistication, more widespread use of state of the black art monetisation techniques by attackers and involvement of rogue states, there is a worldwide shortage of nearly a million skilled security professionals.
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On the shortage of trained professionals in India, Dayal said: "In India itself we are seeing a shortage of close to 4,00,000 cyber warriors as per CERT report in September last year. Over 1,000 times, the Indian government websites have been breached for past 3 years."
Android and Java are top security targets for malware and hacks, the report said adding Android also has a large install base and is therefore an attractive target for hackers.
It's an open platform with innumerable iterations and hence is easier to exploit compared to a closed operating systems. Ninety-nine per cent of all mobile malware in 2013 targeted Android devices, it added.
SIO inspects about 16 billion web requests daily through the Cisco Cloud Web Security and 93 billion emails daily by Cisco's hosted email solution, he added.
Besides, SIO daily inspects 2 lakh IP addresses, 4 lakh malware samples, 33 million endpoint files and 28 million network connects, he said.
On cyber security threats this year, Dayal said: "The primary challenges are greater attack surface, proliferation and sophistication of the attack model and complexity of threats and fragmented solutions.