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Cybersecurity 5 December 2025 - 21 December 2025

Cisco Stock (CSCO) News, Forecasts and Analysis: AI Networking Momentum Meets a New Zero‑Day Risk (Dec. 20, 2025)

Cisco Stock (CSCO) News, Forecasts and Analysis: AI Networking Momentum Meets a New Zero‑Day Risk (Dec. 20, 2025)

Cisco shares closed at $78.42 ahead of the Dec. 20 weekend, near multi-decade highs. Morgan Stanley reiterated an Overweight rating, while director Michael D. Capellas disclosed stock sales on Dec. 18 and 19. Cisco Talos reported active exploitation of vulnerabilities in its email security appliances. The company recently raised its fiscal 2026 outlook, citing strong AI networking demand.
21 December 2025
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Palo Alto Networks (PANW) Stock After Hours on Dec. 19, 2025: Google Cloud’s Multibillion-Dollar Deal, CyberArk Regulatory Update, and What to Watch Before the Next Market Open

Palo Alto Networks (PANW) Stock After Hours on Dec. 19, 2025: Google Cloud’s Multibillion-Dollar Deal, CyberArk Regulatory Update, and What to Watch Before the Next Market Open

Palo Alto Networks shares closed at $186.88 Friday, up 0.54%, with after-hours trading at $187.51 as of 7:59 p.m. ET. Volume surged to 18.74 million shares. The move followed news of an expanded Google Cloud partnership, reportedly near $10 billion, and a regulatory update on the CyberArk acquisition. U.S. markets reopen Monday, December 22.
20 December 2025
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Cisco Systems (CSCO) Stock News on Dec. 19, 2025: Record-High Run, Analyst Price Targets, AI Networking Tailwinds—and a New Zero-Day Risk

Cisco Systems (CSCO) Stock News on Dec. 19, 2025: Record-High Run, Analyst Price Targets, AI Networking Tailwinds—and a New Zero-Day Risk

Cisco shares closed at $78.43 on Dec. 19, up 1.9%, after recently surpassing their March 2000 dot-com peak. The move follows raised full-year guidance and strong AI infrastructure demand. Traders also reacted to a cybersecurity issue involving Cisco email security products and new insider filings after the stock’s multi-decade high. U.S. tech stocks broadly advanced amid renewed AI optimism.
19 December 2025
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Cisco Stock After Hours Today (Dec. 18, 2025): CSCO Slips in Late Trading as a Critical Zero‑Day Cyber Alert Hits Headlines — What to Watch Before Friday’s Open

Cisco Stock After Hours Today (Dec. 18, 2025): CSCO Slips in Late Trading as a Critical Zero‑Day Cyber Alert Hits Headlines — What to Watch Before Friday’s Open

Cisco shares closed up 1.25% at $76.95 Thursday, then slipped about 0.4% after hours as the company confirmed active exploitation of a critical zero-day vulnerability in its Secure Email appliances. No patch was available at disclosure, and U.S. authorities flagged the issue as urgent. Trading volume reached 18.9 million shares during the regular session.
19 December 2025
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Cisco Stock News Today (Dec. 18, 2025): CSCO Rises as Wall Street Lifts Targets—But a Critical Zero‑Day Cyber Alert Adds Risk

Cisco Stock News Today (Dec. 18, 2025): CSCO Rises as Wall Street Lifts Targets—But a Critical Zero‑Day Cyber Alert Adds Risk

Cisco stock rose 1.5% to $77.15 on December 18 after Morgan Stanley reaffirmed its “Overweight” rating and analysts raised targets. Meanwhile, Cisco warned that China-linked attackers are actively exploiting a critical zero-day flaw in its Secure Email products, with no patch available. Singapore’s Cyber Security Agency rated the vulnerability CVE-2025-20393 at 10/10 severity. Trading volume reached 6.14 million shares.
18 December 2025
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Cisco (CSCO) Stock After Hours: Zero-Day Cybersecurity Alert, Shareholder Vote, and Analyst Targets to Watch Before the Dec. 18 Market Open

Cisco (CSCO) Stock After Hours: Zero-Day Cybersecurity Alert, Shareholder Vote, and Analyst Targets to Watch Before the Dec. 18 Market Open

Cisco shares closed down 2.00% at $76.00 Wednesday, then edged up to about $76.25 after hours. The drop followed news of an actively exploited zero-day vulnerability in Cisco email security products, which the company linked to a Chinese APT group. The S&P 500 also fell 1.16%. Investors weighed the security incident, a shareholder vote on equity incentives, and new analyst targets.
18 December 2025
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CrowdStrike Stock (CRWD) News Today — Dec. 17, 2025: Falcon AIDR AI Security Launch, Analyst Forecasts, Options Signals, and What’s Moving Shares

CrowdStrike Stock (CRWD) News Today — Dec. 17, 2025: Falcon AIDR AI Security Launch, Analyst Forecasts, Options Signals, and What’s Moving Shares

CrowdStrike shares fell 2.85% to $474.62 midday Wednesday after the company announced general availability of Falcon AIDR, a new AI security product targeting prompt and agent attacks. Trading volume reached about 1.2 million shares. The move follows recent coverage of product expansion, updated institutional ownership, and a credit-rating note. No new earnings were reported; last results came Dec. 2.
17 December 2025
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Defense Technology Stocks Today: US Defense Contractors, AI, Drones and Cyber Names React to Policy Risk and 2026 Spending Tailwinds (Dec. 17, 2025)

Defense Technology Stocks Today: US Defense Contractors, AI, Drones and Cyber Names React to Policy Risk and 2026 Spending Tailwinds (Dec. 17, 2025)

Shares of major U.S. defense contractors fell in premarket trading Wednesday after reports the Trump administration is preparing an executive order to restrict dividends, buybacks, and executive pay for firms with over-budget or delayed programs. Meanwhile, the Senate moved closer to passing a $901 billion defense bill, including a 3.8% troop pay raise, signaling continued high defense spending into 2026.
17 December 2025
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Cybersecurity Stocks Today: Okta Rallies on Jefferies Upgrade as Palo Alto Warns on AI Cloud Attacks and Fortinet Targets NVIDIA “AI Factory” Security (Dec. 16, 2025)

Cybersecurity Stocks Today: Okta Rallies on Jefferies Upgrade as Palo Alto Warns on AI Cloud Attacks and Fortinet Targets NVIDIA “AI Factory” Security (Dec. 16, 2025)

Okta shares rose 2.06% Tuesday after Jefferies upgraded the stock to Buy and lifted its price target to $125, citing strong identity-security demand into 2026. Other cybersecurity names, including CyberArk and SentinelOne, also gained as the sector outperformed a falling broader market. The Dow was down 0.63% and the S&P 500 dropped 0.42% by 2:00 p.m. ET. Cybersecurity ETFs traded modestly higher.
16 December 2025
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Palo Alto Networks Stock (PANW) Today — Dec. 16, 2025: Analyst Price Targets Shift as a New AI Security Report Reframes the Cloud Risk Debate

Palo Alto Networks Stock (PANW) Today — Dec. 16, 2025: Analyst Price Targets Shift as a New AI Security Report Reframes the Cloud Risk Debate

Palo Alto Networks shares traded near $186 on Dec. 16, 2025, down about 4% over five days, as the company released its State of Cloud Security Report highlighting a surge in AI-driven cloud and API attacks. Mizuho cut its price target while Wolfe Research raised theirs. Investors also tracked insider selling by a company director.
16 December 2025
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Cybersecurity US Stocks Week Ahead (Dec. 15–19, 2025): Zscaler’s Bounce Test, SailPoint’s Post-Earnings Reset, and Fed-Cut Volatility

Cybersecurity US Stocks Week Ahead (Dec. 15–19, 2025): Zscaler’s Bounce Test, SailPoint’s Post-Earnings Reset, and Fed-Cut Volatility

US cybersecurity stocks rose early in the week after the Federal Reserve cut rates on Dec. 10, but reversed as tech shares sold off following Broadcom’s AI-driven outlook. Investors favored companies with strong recurring revenue and measurable AI security benefits, while becoming more selective on valuations and guidance. SailPoint shares slipped despite beating earnings, as high expectations and valuation weighed on the reaction.
14 December 2025
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CrowdStrike Stock (CRWD) on December 10, 2025: MITRE Win, AI Growth Engines and Fresh Price Targets

CrowdStrike Stock (CRWD) on December 10, 2025: MITRE Win, AI Growth Engines and Fresh Price Targets

CrowdStrike shares traded near $516.55 late Monday, valuing the company at about $130 billion. The firm reported perfect scores in the 2025 MITRE ATT&CK Enterprise Evaluations. Q3 revenue rose 22% to $1.23 billion, with net new ARR up 73%. Analysts cite valuation concerns, with the stock trading over 20 times forward sales.
10 December 2025
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Singapore Technologies Engineering Ltd (ST Engineering) 2025 Update: Record Order Book, iDirect Impairment and a New Cybersecurity Push

Singapore Technologies Engineering Ltd (ST Engineering) 2025 Update: Record Order Book, iDirect Impairment and a New Cybersecurity Push

ST Engineering reported S$9.1 billion in group revenue for the first nine months of 2025, up 9% year-on-year, and a record order book of S$32.6 billion. The company took a S$667 million impairment on its iDirect satcom business and signaled a strategic reset in that segment. Defence contract wins surged, with S$6.6 billion secured in 9M2025, up 84% from a year earlier.
8 December 2025
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Perplexity AI in the Spotlight: NYT Lawsuit, Cristiano Ronaldo Investment and New Security Tech – Everything That Happened From 5–7 December 2025

Perplexity AI in the Spotlight: NYT Lawsuit, Cristiano Ronaldo Investment and New Security Tech – Everything That Happened From 5–7 December 2025

The New York Times sued Perplexity AI on Dec. 5, alleging copyright violations for using Times articles to train its AI. The same day, the Chicago Tribune filed a similar lawsuit. Perplexity also announced an investment from Cristiano Ronaldo, launched new browser security features, and expanded free premium bundles in India.
7 December 2025
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CRWD Stock Forecast: Can CrowdStrike’s AI Security Machine Justify Its Sky‑High Valuation in 2026?

CRWD Stock Forecast: Can CrowdStrike’s AI Security Machine Justify Its Sky‑High Valuation in 2026?

CrowdStrike closed near $512 per share before the weekend of December 7, 2025, valuing the company at about $128 billion. Shares are up roughly 50% over the past year, with the stock less than 10% below its 52-week high. Q3 revenue rose 22% to $1.23 billion, beating expectations, while net new annual recurring revenue jumped 73% year over year. Wall Street’s 12-month price targets range widely, with a median near $572.
7 December 2025
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Central Dakota Ag Day 2025 Highlights Cybersecurity as SDSU Holiday Open Launches Indoor Season

Central Dakota Ag Day 2025 Highlights Cybersecurity as SDSU Holiday Open Launches Indoor Season

North Dakota State University Extension will host Central Dakota Ag Day on Dec. 19 in Carrington, focusing on cybersecurity, robotic weed control, and livestock health for producers. The event features a keynote on farm cybersecurity and multiple breakout sessions, with no registration required. Meanwhile, South Dakota’s top track and field programs opened the indoor season with record performances at the SDSU Holiday Open in Brookings.
6 December 2025
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BlackBerry Stock Outlook: Can BB’s Cybersecurity and QNX Wins Power the Next Leg Higher in 2025–2026?

BlackBerry Stock Outlook: Can BB’s Cybersecurity and QNX Wins Power the Next Leg Higher in 2025–2026?

BlackBerry shares closed at $4.32 on December 5, up 1.65%, with about 5 million shares traded. The company, now focused on cybersecurity and automotive software, completed the $160 million sale of its Cylance business to Arctic Wolf in February. Shares have gained around 66% over the past year but remain 30% below their 52-week high. BlackBerry reports Q3 fiscal 2026 earnings on December 18.
6 December 2025
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SentinelOne (NYSE: S) Stock After Q3 Earnings: Double‑Digit Growth, CFO Exit and AWS AI Push Shape 2026 Outlook

SentinelOne (NYSE: S) Stock After Q3 Earnings: Double‑Digit Growth, CFO Exit and AWS AI Push Shape 2026 Outlook

SentinelOne reported Q3 revenue of $258.9 million, up 23% year over year, and annualized recurring revenue surpassed $1 billion. Shares fell more than 8% after hours following softer guidance and the unexpected exit of the CFO. Non-GAAP operating margin turned positive at 7%. The stock is down about 23% year to date.
5 December 2025
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Cloudflare Down Today: Global Internet Outage on December 5, 2025 – What Happened, Who Was Hit, and If It’s Fixed Now

Cloudflare Down Today: Global Internet Outage on December 5, 2025 – What Happened, Who Was Hit, and If It’s Fixed Now

Cloudflare suffered a major outage on December 5, 2025, starting just before 09:00 UTC, disrupting up to 20% of websites and causing 500 Internal Server Errors on platforms like Zoom, LinkedIn, and Spotify. The disruption lasted about 30–40 minutes. Cloudflare traced the cause to a Web Application Firewall update, not a cyberattack. Most services recovered after 09:12 UTC, though some issues remain under review.
5 December 2025
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