scam webpage whose modus operandi is claiming that the user has completed registration for a paid service

Short for ワンクリック詐欺 (wankurikku sagi).

(computing) "one click" (implying that an action is done with ease)

be careful, watch out / take care

to be careful about ~

Alternative spelling of 気を付けて

be big and round

reckless, rash, unthinking / immoderate, excessive

recklessness, abandon / immoderation

feeling, sense / air, gas / air, nature, disposition, sense / spirit, mood / inclination, will, mood, urge