jetpack_protect_can_send_recovery_emailsFilter controls if an email recovery form is shown to blocked IPs. A recovery form allows folks to re-gain access to the login form via an email link if their IP was mistakenly blocked.
jpp_allow_loginShort-circuit check_login_ability. If there is an alternate way to validate the current IP such as a hard-coded list of IP addresses, we can short-circuit the rest of the login ability checks and return true here.
jetpack_protect_connect_timeoutFilter controls maximum timeout in waiting for reponse from Protect servers.
jpp_log_failed_attemptFires before every failed login attempt.
jpp_kill_loginFires before every killed login.
jpp_use_captcha_when_blockedAllow Math fallback for blocked IPs.
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