INTZ
INTRUSION INC
NASDAQ · Technology · Software - Infrastructure · US
$0.77
+1.18%Price chart
Aug 19Aug 24Aug 27Sep 1Sep 4Sep 10Sep 15Sep 18
Key dataSep 18, 2026
Open$0.77
From 52W high−62.62%
Volume99405.00
Market cap$18.87M
P/E (TTM)—
P/S (TTM)3.3x
Div yield—
Key dataSep 18, 2026
Open
$0.77
From 52W high
−62.62%
Volume
99405.00
Market cap
$18.87M
ValuationView details →
P/E (Fwd)
—
EV/EBITDA
−2.8x
P/E (TTM)
—
RSI (14)
51.3
MomentumView details →
1D Return
+1.18%
YTD Return
−30.50%
SummaryUpdated Jun 1, 2026
Intrusion Inc. (NASDAQ:INTZ) is a cybersecurity company founded in 1983 and headquartered in Plano, Texas. Originally incorporated as Intrusion.com, Inc., the company changed its name to Intrusion Inc. in November 2001 and went public in 1992. The company has evolved from its early days to focus primarily on developing advanced cybersecurity solutions that detect and prevent sophisticated cyber threats, particularly zero-day attacks and ransomware. Today, Intrusion operates as a specialized cybersecurity firm serving government entities and enterprises with its proprietary threat detection technology.
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Intrusion Inc. (INTZ) shares closed at $0.77, down 3.85% from the previous close.4d agoIntrusion Inc. announced that President and Chief Executive Officer Anthony Scott will depart by mutual agreement effective November 15, 2026.5d agoIntrusion Inc. issued a secured promissory note for $1,615,000 principal, receiving $1,500,000 in cash proceeds, with interest at 7% per annum and a 24-month maturity, secured by a first-priority security interest in all assets and IP, guaranteed by subsidiary OW Cyber, LLC.23d ago