In considering whether the requirements imposed by a technical assistance notice or a varied technical assistance notice are reasonable and proportionate, the Director - General of Security or the chief officer of an interception agency, as the case requires, must have regard to the following matters:
(a) the interests of national security;
(b) the interests of law enforcement;
(c) the legitimate interests of the designated communications provider to whom the notice relates;
(d) the objectives of the notice;
(e) the availability of other means to achieve the objectives of the notice;
(ea) whether the requirements, when compared to other forms of industry assistance known to the Director - General of Security or the chief officer, as the case requires, are the least intrusive form of industry assistance so far as the following persons are concerned:
(i) persons whose activities are not of interest to ASIO;
(ii) persons whose activities are not of interest to interception agencies;
(eb) whether the requirements are necessary;
(f) the legitimate expectations of the Australian community relating to privacy and cybersecurity;
(g) such other matters (if any) as the Director - General of Security or the chief officer, as the case requires, considers relevant.