Teachers stay in control. Students stay protected.

HUSH is built for large classes where quiet students often stay silent. Students ask questions, talk in class chat and study rooms, check in, and get course-specific help — so safety has to cover all of it. Every control below exists to keep the conversation focused on learning, give instructors authority over their course, and give students real tools when something goes wrong.

Students do not have to wait for someone else to act. Every message, question, room post, and direct message has controls built in:

• Report message — sends the content to HUSH moderation for review.
• Block user — stops a classmate from messaging you directly.
• Mute — silences notifications from a conversation or room without leaving it.

Reported content is reviewed by HUSH moderation. Professors do not get unrestricted access to private student conversations because a report was filed — we act on what is necessary to resolve the report or protect someone's safety.

Questions, chat messages, and uploads pass through automatic filters that catch profanity, harassment, and spam (including link-heavy submissions). Flagged items are held or surfaced for review rather than shown silently.

• Profanity and inappropriate-content filter
• Harassment filter
• Spam & link filter

Filters are imperfect, which is why the report tools above always remain available.

Instructors can require approval before any question is visible to the class. Approve, reject, mark as spam, or delete with a single click from the moderation panel — with a running activity log of every action.

Students always know who can read what. Spaces are clearly labeled before you post:

• Class Chat, student-created Study Rooms, and Direct Messages are not readable by instructors, TAs, or institution administrators.
• Rooms created by course staff that staff can read are marked as teacher-visible.
• Live Questions go to the instructor, with the anonymity mode shown before you submit.

Students sign in with an email or Google account and join a class with a code. HUSH stores what is needed to run the class — questions, chat, attendance, activity responses, and AI tutor conversations — and nothing is sold. Read the Privacy Policy for the full list of what we collect and how AI processing works.

Instructors choose one of three modes for Live Questions:

• Anonymous to everyone
• Anonymous to classmates but visible to the instructor
• Fully identified

Anonymity is a teacher-wide setting you can change at any time. New questions immediately follow the new rule.

Per-class rate limits prevent floods of questions or chat messages in a short window, so a burst never drowns out real participation. Students see a clear message when a limit is hit.

Check-in codes rotate every 20 seconds and the window closes automatically, so a code cannot be shared ahead of time with an absent classmate. Check-ins are validated on our servers, and no location data is collected.

The Course Assistant prioritizes your uploaded course materials and your own published answers, and links to the source behind each reply so students (and you) can check where an answer came from. It can still be wrong like any AI tool. Instructors control whether it is on for a class at all.