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CCNY

Phoned-in violence threat closed the campus early before a holiday break

AI-generated · every claim is source-linked
NYthreat of violenceemergency notificationhigh confidence
Under Investigation

On November 21, 2023, the City College of New York closed its Harlem campus at about 1 p.m. EST after receiving a phone call threatening an act of violence on campus at a specific time. CCNY emailed students and staff to leave immediately, and the campus was cleared out of an abundance of caution. The threat did not target any specific individual or group.

Alerts
1
Response
Killed
Injured
Institution
The City College of New York
Public Masters · NY
All CCNY cases →
CUNY Alert
Documented Timeline

Alert Sequence

1 message in sequence · 1 verified verbatim

INITIAL ALERTEmail
Due to a threat to the City College campus, and out of an abundance of caution, CCNY will close today, Tuesday, November 21st at 1 PM. If you are on campus, please depart the campus promptly. If you have not arrived on campus yet, please do not come to the campus, and please note that all buildings will be closed.
PIX11, Fox 5 New York, and HarlemView all quoted this closure email verbatim: 'Due to a threat to the City College campus, and out of an abundance of caution, CCNY will close today, Tuesday, November 21st at 1 PM. If you are on campus, please depart the campus promptly. If you have not arrived on campus yet, please do not come to the campus, and please note that all buildings will be closed.'
The college received a phone call threatening violence at a specific time without targeting any specific individual or group, per The Campus and HarlemView reporting.
The closure email was distributed approximately 1:00 PM EST on November 21, 2023 (the Tuesday before Thanksgiving) and the CCNY President's Office also published a 'Closing Early' post at ccny.cuny.edu/presidentsoffice/blog/closing-early with the same message.
Message elements

How the first alert is built

To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

Due to a threat to the City College campus, and out of an abundance of caution, CCNY will close today, Tuesday, November 21st at 1 PM. If you are on campus, please depart the campus promptly. If you have not arrived on campus yet, please do not come to the campus, and please note that all buildings will be closed.

  • Sourcepresent25/25

    Final assessment

    All 25 reads agree the source is present; it names City College and CCNY as the issuer.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. present: Refers to "CCNY" / "City College" as issuer of the closure.
    2. present: It names "City College" and "CCNY", identifying the sender.
    3. present: Names "City College" / "CCNY" as the issuing institution.
    4. present: It names "City College" / "CCNY", identifying the issuer.
    5. present: Refers to "City College" and "CCNY" naming itself as the sender.
    6. present: It refers to "CCNY will close", identifying the institution sender.
    7. present: It names "City College" / "CCNY", the issuing institution.
    8. present: Names "City College" and "CCNY" as the issuing institution.
    9. present: Names "City College" and "CCNY", the institution sending it.
    10. present: It names "City College" and "CCNY" as the issuing institution.
    11. present: It names "City College" and "CCNY", self-identifying the sender.
    12. present: Names "City College campus" and "CCNY" as the issuing institution.
    13. present: Names "City College campus" and "CCNY", the issuer naming itself.
    14. present: It references "CCNY" and "the City College campus", identifying the institutional sender.
    15. present: It references "CCNY" and "the City College campus", identifying the institutional sender.
    16. present: Refers to "City College" and "CCNY", identifying the institution as sender.
    17. present: It references "CCNY" / "City College" naming itself as sender.
    18. present: It references "CCNY" / "City College", identifying the sending institution.
    19. present: It references "CCNY" closing, identifying the institutional sender.
    20. present: It references "CCNY" and "the City College campus", identifying the institution as sender.
    21. present: Names "CCNY" / "City College", the issuing institution.
    22. present: Names "City College" and "CCNY" as the issuing institution.
    23. present: It refers to "CCNY" and "the City College campus", identifying the institutional sender.
    24. present: It references "City College" and "CCNY", the issuing institution.
    25. present: It names "City College" / "CCNY" as the institution issuing the message.
  • Hazardpresent16/25

    Final assessment

    Final call present; a majority read a threat to the City College campus, with the closure context, as a named threat, though some found the phrase generic.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. present: Names "a threat to the City College campus", a specific threat hazard.
    2. present: It names "a threat to the City College campus", a specific threat.
    3. present: Names "a threat to the City College campus", a specific threat.
    4. present: It names "a threat to the City College campus", a specific threat.
    5. present: States "a threat to the City College campus", a threat is named with closure context; voting present.
    6. present: It names "a threat to the City College campus", a specific threat.
    7. present: It cites "a threat to the City College campus", a specific threat.
    8. absent: Says only "a threat to the City College campus"; no specific hazard is named.
    9. present: States "a threat to the City College campus", a specific threat.
    10. present: It names "a threat to the City College campus", a specific threat.
    11. present: It states "a threat to the City College campus", though general, stated as the situation.
    12. present: Names "a threat to the City College campus", a specific threat.
    13. absent: Says "a threat to the City College campus"; "threat" is generic and names no specific hazard.
    14. absent: It cites only "a threat to the City College campus", a generic phrase naming no specific hazard.
    15. absent: It cites "a threat to the City College campus" but names no specific hazard.
    16. absent: Says only "a threat to the City College campus" without naming a specific hazard.
    17. present: It names "a threat to the City College campus", a specific threat.
    18. present: It names "a threat to the City College campus", a specific threat.
    19. absent: It cites "a threat to the City College campus" but does not name the specific hazard.
    20. absent: It says only "a threat to the City College campus" without naming a specific hazard.
    21. absent: Refers to "a threat to the City College campus" without naming a specific hazard.
    22. present: Names "a threat to the City College campus", a stated threat.
    23. absent: It cites "a threat to the City College campus" but does not name a specific hazard.
    24. present: It names "a threat to the City College campus", a specific threat.
    25. present: It names "a threat to the City College campus", a specific threat.
  • Locationpresent25/25

    Final assessment

    All reads agree a location is present, citing the City College campus and all buildings.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. present: Says "the City College campus" and "all buildings".
    2. present: It says "the City College campus" and "all buildings", a specific place.
    3. present: Specifies "the City College campus" and "all buildings", a location.
    4. present: It cites "the City College campus" and its buildings, specific places.
    5. present: Says "the City College campus" and "all buildings", referencing campus.
    6. present: It says "the City College campus" and "all buildings", a specific place.
    7. present: It specifies "the City College campus" and "all buildings", a location.
    8. present: Says "the City College campus" and "all buildings", a specific place.
    9. present: Locates it at "the City College campus" and "all buildings".
    10. present: It says "the City College campus" and "all buildings".
    11. present: It refers to "the City College campus" and its buildings.
    12. present: Locates it at "the City College campus" with "all buildings".
    13. present: Says "City College campus" and "all buildings", location references.
    14. present: It references "the City College campus" and "all buildings".
    15. present: It refers to "the City College campus" and "all buildings", a location.
    16. present: Says "the City College campus" and "all buildings", a location reference.
    17. present: It says "the City College campus" and "all buildings", referencing campus.
    18. present: It locates it as "the City College campus" with "all buildings" closed.
    19. present: It names "the City College campus" and "all buildings".
    20. present: It references "the City College campus" and "all buildings", a campus location.
    21. present: Says "the City College campus" and "all buildings", specific places.
    22. present: Specifies "the City College campus" and "all buildings".
    23. present: It names "the City College campus" and "all buildings".
    24. present: It names "the City College campus" and "all buildings", specific places.
    25. present: It locates it at "the City College campus" buildings.
  • Guidancepresent25/25

    Final assessment

    Unanimous that guidance is present, instructing people to depart campus promptly and not to come to campus.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. present: Instructs "please depart the campus promptly" and not to come to campus.
    2. present: It instructs people to "depart the campus promptly" and not come to campus.
    3. present: Instructs those on campus to "depart the campus promptly" and others not to come.
    4. present: It instructs "please depart the campus promptly" and "do not come to the campus", protective actions.
    5. present: Instructs "please depart the campus promptly" and "do not come to the campus".
    6. present: It instructs "please depart the campus promptly" and not to come.
    7. present: It instructs "please depart the campus promptly" and "do not come to the campus", protective actions.
    8. present: Instructs "please depart the campus promptly" and "please do not come to the campus", protective actions.
    9. present: Instructs "please depart the campus promptly" and not to come.
    10. present: It instructs "please depart the campus promptly" and "do not come to the campus".
    11. present: It tells those on campus to "depart the campus promptly" and not to come.
    12. present: Instructs those on campus to "depart the campus promptly" and others not to come.
    13. present: Instructs "please depart the campus promptly" and "do not come to the campus", protective actions.
    14. present: It instructs those on campus to "depart the campus promptly" and not to come to campus.
    15. present: It instructs people to "depart the campus promptly" or "do not come to the campus", protective actions.
    16. present: Instructs "please depart the campus promptly" and "please do not come to the campus".
    17. present: It instructs "please depart the campus promptly" and not to come.
    18. present: It instructs those on campus to "depart the campus promptly" and others not to come.
    19. present: It instructs people on campus to "depart the campus promptly" and not to come.
    20. present: It instructs "please depart the campus promptly" and "do not come to the campus", protective actions.
    21. present: Instructs those on campus to "depart the campus promptly" and not to come.
    22. present: Instructs to "depart the campus promptly" and "please do not come to the campus".
    23. present: It instructs people on campus to "depart the campus promptly" and others not to come.
    24. present: It instructs "please depart the campus promptly" and "do not come to the campus".
    25. present: It instructs those on campus to "depart the campus promptly" and others not to come.
  • Timepresent25/25

    Final assessment

    All 25 reads agree timing is present, citing today, Tuesday, November 21st at 1 PM.

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. present: Gives "today, Tuesday, November 21st at 1 PM".
    2. present: It gives "today, Tuesday, November 21st at 1 PM", a clock time and date.
    3. present: Gives "today, Tuesday, November 21st at 1 PM", a date and clock time.
    4. present: It states "today, Tuesday, November 21st at 1 PM".
    5. present: Gives "today, Tuesday, November 21st at 1 PM".
    6. present: It gives "today, Tuesday, November 21st at 1 PM".
    7. present: It gives "today, Tuesday, November 21st at 1 PM", a clock time and date.
    8. present: Says "today, Tuesday, November 21st at 1 PM", a clock time and date.
    9. present: Gives "today, Tuesday, November 21st at 1 PM".
    10. present: It says "today, Tuesday, November 21st at 1 PM", a clock time and date.
    11. present: It gives "today, Tuesday, November 21st at 1 PM".
    12. present: Gives "today, Tuesday, November 21st at 1 PM".
    13. present: Gives "today, Tuesday, November 21st at 1 PM".
    14. present: It provides "today, Tuesday, November 21st at 1 PM".
    15. present: It states "today, Tuesday, November 21st at 1 PM", a clock time and date.
    16. present: Gives "today, Tuesday, November 21st at 1 PM".
    17. present: It gives "today, Tuesday, November 21st at 1 PM".
    18. present: It gives the time and date "today, Tuesday, November 21st at 1 PM".
    19. present: It gives "today, Tuesday, November 21st at 1 PM".
    20. present: It says "today, Tuesday, November 21st at 1 PM", a clock time and date.
    21. present: Says "today, Tuesday, November 21st at 1 PM".
    22. present: Gives "today, Tuesday, November 21st at 1 PM".
    23. present: It cites "today, Tuesday, November 21st at 1 PM".
    24. present: It gives "today, Tuesday, November 21st at 1 PM".
    25. present: It gives "today, Tuesday, November 21st at 1 PM".
  • Impactabsent5/25

    Final assessment

    Absent by a 20 to 5 majority. Cites a threat to campus prompting closure out of an abundance of caution but states no specific harm or severity; the minority read the closure as conveying danger.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. absent: It cites a threat and abundance of caution closure but states no explicit harm or severity of the threat.
    2. absent: This cites a threat and abundance of caution closure but does not state what harm could occur.
    3. absent: Cites a threat and abundance of caution closure with depart guidance but no stated harm or consequence.
    4. present: It states a threat to the campus and directs prompt departure and building closures, conveying that the threat is serious enough to evacuate.
    5. absent: Mentions a threat and abundance of caution closure but states no harm or severity of the threat.
    6. present: It references a threat to campus prompting closure and immediate departure which implies danger but uses abundance of caution framing so the harm is only weakly implied; the threat-driven closure conveys consequence.
    7. absent: Cites a threat and abundance of caution closure but states no specific harm or severity beyond naming the threat.
    8. absent: Says a threat prompted closure out of an abundance of caution but does not state what harm the threat could cause.
    9. present: Says campus is closing due to a threat and tells people to depart, which implies danger though the wording is mostly precautionary; the explicit closure-for-threat conveys seriousness.
    10. present: It cites a threat to campus and closes early for caution, implying potential danger to people on campus.
    11. absent: Cites a threat and closes campus out of caution but states no explicit harm or potential consequence.
    12. absent: It cites a threat and an abundance of caution closure but states no specific danger or consequence the threat could cause.
    13. absent: A threat prompting closure out of an abundance of caution gives precautionary guidance without stating what harm could occur.
    14. absent: References a threat and closes campus out of caution but does not state what the threat could do or any severity of harm.
    15. absent: Cites a threat and closes campus out of an abundance of caution but states no harm the threat could cause.
    16. present: States a threat to campus prompting closure and urging people to depart and not come, conveying a danger serious enough to warrant evacuation.
    17. absent: Cites a threat and an abundance of caution closure but states no specific danger or consequence.
    18. absent: Cites a threat and abundance of caution closure but states no harm the threat could cause.
    19. absent: References a threat and abundance of caution closure but states no specific harm or severity.
    20. absent: Mentions a threat and closure out of abundance of caution but states no specific harm or danger.
    21. absent: Closes campus due to a threat out of an abundance of caution but states no specific harm the threat could cause.
    22. absent: Cites a threat and abundance of caution closure but states no explicit consequence or harm.
    23. absent: Cites a threat and abundance of caution closure but states no specific consequence or harm.
    24. absent: Mentions a threat and abundance of caution closure but states no specific harm or danger.
    25. absent: It cites a threat and abundance of caution closure but does not state what the threat could do.

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

The City College of New York is the flagship campus of the CUNY system and a federally designated Hispanic-Serving Institution serving a heavily first-generation, immigrant, and minority student body in Harlem. On November 21, 2023 (the Tuesday before Thanksgiving break) CCNY closed its campus at about 1 p.m. EST after a caller threatened to commit an act of violence at a specific time. The college emailed everyone to leave immediately, and the student newspaper, The Campus, covered the threat and closure. The episode came amid a period of heightened anxiety at CCNY, which had separately dealt with a student's threat to 'shoot up' the school in late 2022. The CCNY closure illustrates how an urban HSI weighs a non-specific phoned-in threat against the cost of clearing an entire commuter campus.
Provenance

Sources

  1. News
  2. News
  3. Student Paper
  4. News
  5. News
  6. Official
Cite this case

Campus Alert Archive. "The City College of New York: Phoned-in violence threat closed the campus early before a holiday break." Incident of November 21, 2023. Added May 2026; last updated June 2026. https://campusalertarchive.com/case/city-college-of-new-york-violence-threat-closure-2023-11-21/

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Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
threat-of-violencecampus-closureevacuationhispanic-serving-institutionhsicunynew-yorkharlememergency-notificationUnder Investigation
Added May 2026Updated June 2026Via ingestion