ACSC cyber security alerts and advisories During the 2020–21 financial year, the ACSC publicly released: ■ 27 alerts providing critical information that enabled early identification and prevention of cyber security threats. Alerts can be found on the ACSC’s website. ■ 12 advisories providing detailed advice on significant cyber security threats. Advisories can be found on the ACSC’s website. Calls to the ACSC via 1300 CYBER1 Since the start of the 2020–21 financial year, the ACSC has seen a significant increase in the number of calls to 1300 CYBER1. The number of calls in the 2020–21 financial year totalled more than 22,000, an average of 60 calls received per day. This is an increase of more than 310 per cent, compared with the previous financial year where the ACSC received 5,300 calls (see Figure 5). This is largely attributable to an increase in public awareness of cyber security matters resulting in Australians contacting the ACSC for general cyber security advice and assistance as well as an increase in cybercrime reporting. Figure 5: Call volumes for financial year 2020–21 compared with financial year 2019–20 3000 2250 1500 750 0 Jul Aug Sep Oct Nov Calls in FY 19–20 Dec Jan Feb Mar Apr May Jun Calls in FY 20–21 ACSC cyber security incidents The ACSC categorises each incident it responds to on a scale of Category 1, the most severe, to Category 6, the least severe. During the 2020–21 financial year, the ACSC responded to approximately 1,630 cyber security incidents, an average of 31 cyber security incidents per week. 18