CIS LEBANON SECURITY INDEX - August 24 2026

🛡️ CIS LEBANON SECURITY INDEX™

Monday, August 24, 2026

Conflict Day 176 · Truce Day 65 · Methodology v3.0 · Coding Manual v3.1

OVERALL INDEX: 55/100

TREND: ⬇️ FIRST DROP OUT OF THE HIGH BAND — The national alert level reads 55/100 MEDIUM, down six points from 61 and set by Nabatieh. The 15 and 16 August loads, the two heaviest inputs of the war, have both now fully exited the seven-day window. Confidence remains LOW: today's own new information is a single uncorroborated strike, and four consecutive editions this week were revised upward within one to three days of publication.

TIER 1 — PUBLIC EDITION

🟡 NATIONAL ALERT LEVEL: 55/100 — MEDIUM

Driven by: Nabatieh · Trend: ⬇️ −6 (61 → 55) · Band change: HIGH → MEDIUM · Confidence: LOW Spread: 0 CRITICAL · 0 HIGH · 2 MEDIUM · 5 LOW · 2 MINIMAL

Governorate Readings

> ⚠️ A genuine milestone, from very thin evidence — treat it accordingly. Today is the first time the National Alert Level has fallen out of the HIGH band since computed scoring began on 16 August. It follows the 15 and 16 August loads — the two heaviest inputs of the war — both fully exiting the seven-day window. But today's own new information is a single, uncorroborated incident, and this exact week has seen four consecutive editions revised upward within one to three days of publication. Confidence remains LOW. CIS states plainly: this is not yet a result to celebrate.

Israeli strike on a house in Nabatieh al-Fawqa; casualties unclear

• The Israeli military struck a house in Nabatieh al-Fawqa overnight, Al Jazeera reported, citing Lebanon's National News Agency. It was unclear at the time of publication whether there were casualties.
• No further incidents were confidently dated to the past 24 hours at compilation time.
• With this week's pattern of delayed, incomplete reporting, CIS expects today's picture may still be revised as fuller detail emerges over the coming one to three days.

🚦 Zone Guidance

If you are in or near an affected area

1. Do not travel into Nabatieh, Bint Jbeil or Marjayoun districts.
2. Do not treat today's lower band as a signal to relax — this week's four prior editions were all revised upward after publication.
3. Keep phones charged and agree a family check-in time and a meeting point.
4. Identify the lowest interior room in your building, away from windows and glazing.
5. Keep identity documents, medication and cash together and ready to move at short notice.
6. Verify any casualty or threat claim through official channels before acting.
7. Follow Civil Defence (125) and Lebanese Red Cross (1760) in preference to social media.

📞 Emergency Contacts

• CIS Security emergency line (active clients): +961-3-539900 — 24/7/365
• CIS general enquiries: +961-3-539900 · info@cissecurity.net · Monday–Friday, 8:00 AM–6:00 PM
• Civil Defence: 125 · Lebanese Red Cross: 1760 · Internal Security Forces: 112
• Lebanese Army — South Lebanon Liaison: +961-8-802-510
• National Mental Health Lifeline: 1564 — free, confidential, 24/7
• US Embassy emergency (overseas citizens services): +1-202-501-4444 · BeirutACS@state.gov

> ⚠️ Responsible-use disclaimer > The CIS Lebanon Security Index™ is a professional situational assessment published as a free public service. It is informational — it is not a guarantee of safety and not a substitute for official government guidance. CIS Security accepts no liability for decisions made solely on Index readings. In an emergency, contact official emergency services. > Methodology: cissecurity.net/lebanon-security-index/#methodology · Corrections: cissecurity.net/lebanon-security-index/#corrections

Need security cover for a property or site? → https://app.cissecurity.net/request Get the Index in your inbox daily, 8:15 AM → cissecurity.net/lebanon-security-index/

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TIER 2 — ANALYST EDITION

Milestone — First Fall Below HIGH Since Methodology Launch

Nabatieh's score of 55 is the first reading below 61 (the HIGH threshold) in any edition since computed scoring began on 16 August. Every prior edition — nine consecutive days — has held at HIGH or CRITICAL.

This coincides with a second structural exit from the window: 16 August, the second-largest single-day input of the current escalation, has now fully decayed out, joining 15 August, which exited yesterday. Today's scores are the first to reflect only 17–24 August — over a week now clear of the two heaviest days of the war.

CIS assessment. CIS is deliberately not framing this as good news. Two milestones point toward de-escalation — the band change and the second major legacy input exiting — but they are structural consequences of the decay window advancing, not independent confirmation that conditions have eased. The one new fact available today is a single uncorroborated incident. CIS's own record this week gives no reason for confidence that it is complete.

Today's Activity — A Single Thin Report

The Israeli military struck a house in Nabatieh al-Fawqa overnight, according to Al Jazeera citing Lebanon's National News Agency. It was unclear at compilation time whether there were casualties. No further incidents were confidently dated to the preceding 24 hours.

CIS assessment. This is the thinnest daily report CIS has coded since 21 August, and follows the same pattern flagged repeatedly this week: single-organisation sourcing (NNA, carried by Al Jazeera counts as one origin under rule 4.6), no casualty detail, no additional locations. Given that four of the last five editions required upward revision, CIS assigns this report low confidence in its own completeness, independent of the LOW confidence rating already driven by reported-share. It is coded as-is; CIS does not pad an incomplete report in anticipation of a revision that has not occurred, any more than it would inflate a quantity word beyond what a source states.

Confidence Remains LOW

Confidence for both Nabatieh and South Lebanon remains LOW for a second consecutive day. Reported-share of Nabatieh's raw load is approximately 95%; South Lebanon's approximately 90%. With both 15 and 16 August — the two most heavily Confirmed days of the escalation — now outside the window, almost the entire remaining raw load rests on single-sourced reporting.

CIS assessment. This should be read alongside the band change above, not separately from it. A MEDIUM reading built on 95% Reported-grade evidence carries materially less certainty than a HIGH reading anchored by corroborated mass-casualty events did a week ago. CIS is not suggesting the MEDIUM reading is wrong — it is the correct output of the published formula applied to what is currently known — only that "currently known" is thinner than at any point since the methodology launched.

Coded Incident Log

24 August 2026 — decay 1.00

Nabatieh subtotal: 3.60. Casualties not coded — status explicitly reported as unclear; coding a casualty figure not stated by any source would violate the never-infer rule.

23 August 2026 — decay 0.75

Two incidents as coded in the 23 August edition. Nabatieh subtotal 7.20.

22 August 2026 — decay 0.5625

Nine incidents as revised in the 23 August edition (REV-2026-007). Nabatieh subtotal 25.80.

21 August 2026 — decay 0.421875

Seven incidents as coded in the 21 August edition. Nabatieh subtotal 14.40; South Lebanon subtotal 5.40.

20 August 2026 — decay 0.316406

Eight incidents as coded in the 20 August edition. Nabatieh subtotal 13.20; South Lebanon subtotal 8.40.

19 August 2026 — decay 0.237305

Nine incidents as revised in the 22 August edition (REV-2026-004). Nabatieh subtotal 22.20; South Lebanon subtotal 5.40.

18 August 2026 — decay 0.177979

Four incidents as coded in the 18 August edition. Nabatieh subtotal 4.80; South Lebanon subtotal 6.00.

17 August 2026 — decay 0.133484

Swept, no incidents confirmed. Contribution: 0.0

16 August 2026

Fully exited the seven-day window as of today. No longer contributes at any weight. Final contribution was yesterday, 23 August, at decay 0.133484.

15 August 2026

Fully exited yesterday. No contribution for two consecutive editions now.

Scoring — Full Working

Nabatieh

Nabatieh crosses from HIGH into MEDIUM.

South Lebanon

Remaining seven governorates

No scoring incidents logged within the window. Activity 0.00. Score = baseline + modifier.

Parameters in force (frozen to 14 November 2026): methodology v3.0 · coding manual v3.1 · decay 0.75/day over 7 days · compression K=100 · activity ceiling 75 · fatality 8, injury 2, structure 3 capped at 12, displacement 5/district, route disruption 3 · confirmation multipliers 1.0 / 0.6 / 0.0.

What CIS Is Watching

1. Whether today's single incident is revised upward over the next one to three editions, consistent with this week's pattern.
2. Whether Nabatieh holds at MEDIUM or reverts to HIGH once the current 24-hour period is more fully reported.
3. Whether reported-share falls as new incidents reach Confirmed status, restoring higher confidence.
4. Whether the Ali al-Taher standoff shows any sign of resolution — eleven days into the current escalation with no diplomatic breakthrough reported.
5. Whether casualties are confirmed from the Nabatieh al-Fawqa strike.

CIS Operational Posture

CIS maintains Level 5 — Severe Alert.

Nabatieh's fall into MEDIUM is a genuine computed outcome, but it rests on the thinnest single day of evidence CIS has coded all week, following four consecutive upward revisions. Posture does not step down on a single day's reading, particularly one CIS itself flags as likely incomplete.

(CIS Posture Levels 1–5: cissecurity.net/lebanon-security-index/#posture)

Practical effect for active client sites:

• Continuous supervisor contact for all sites in Nabatieh and South Lebanon governorates.
• Reinforcement standby maintained under the 24/7 emergency line for active clients.
• Route and access planning reviewed daily for all southern sites.
• New deployments continue within 24 hours of contract confirmation.

Assessment

Today closes out a genuinely historic week for the Index. Nine days of computed scoring, an unbroken run in the HIGH-to-CRITICAL range, and today, for the first time, a fall into MEDIUM — driven by the two heaviest single-day inputs of the current escalation, 15 and 16 August, both now fully outside the calculation window.

CIS is choosing not to present this as resolution. The evidence supporting today's 55 is a single uncorroborated report of a house strike with casualties described as unclear. Every one of the past four editions required a same-pattern correction — same-morning sourcing understating the true scope of the preceding night, sometimes from zero coded incidents to nine. CIS has no basis to treat today's report as more complete than any of those were, and confidence remains LOW for exactly that reason: not because the window has gaps, but because what fills it is thin.

The honest summary is this: the mathematics of decay have done their work, clearing the largest inputs from a nine-day-old calculation. Whether the underlying situation has actually eased to match is a separate question CIS cannot yet answer, and will not answer by assumption. If tonight and tomorrow bring genuinely quiet reporting, that answer will arrive on its own, and the Index will show it. If they do not, CIS expects to be revising this edition within the week.

For Beirut, Mount Lebanon, North Lebanon, Akkar and Keserwan-Jbeil, conditions remain calm and normal operations continue, as they have throughout this stretch. Two governorates now read MINIMAL and seven of nine read LOW or below — the widest calm since the methodology launched. CIS states this alongside its caution, not instead of it: most of Lebanon has been calm the entire time, and Nabatieh's trajectory, however uncertain in its particulars, remains the story that matters for clients operating there.

Sources

Tier 1 — wire services and established international outlets, this edition Al Jazeera, citing Lebanon's National News Agency (Nabatieh al-Fawqa house strike; casualty status unclear).

Note under coding rule 4.6: NNA is the originating organisation regardless of the Tier 1 outlet carrying it. Coded Reported.

> ⚠️ Responsible-use disclaimer > The CIS Lebanon Security Index™ is a professional situational assessment published as a free public service. It is informational — it is not a guarantee of safety and not a substitute for official government guidance. CIS Security accepts no liability for decisions made solely on Index readings. In an emergency, contact official emergency services. > Methodology: cissecurity.net/lebanon-security-index/#methodology > Source register: cissecurity.net/lebanon-security-index/#sources > Corrections and revisions: cissecurity.net/lebanon-security-index/#corrections > To challenge a score: info@cissecurity.net with the date, governorate and basis.

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About CIS Security

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CIS security services in Lebanon include residential security guards for towers, compounds and gated communities; commercial, retail and industrial security services; hospital and school security; jewelry store and high-value retail protection; executive protection and VIP services; and event security. These are supported by CCTV systems, electronic security and access control, GPS tracking and fleet management, risk assessment, professional security consulting, and crisis management and emergency response.

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New client deployments begin within 24 hours of contract confirmation, and a 24/7/365 emergency line is maintained for active clients. CIS Security also publishes the CIS Lebanon Security Index™, Lebanon's first daily public security intelligence platform, covering all nine governorates every morning at 8:00 AM.

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CIS Lebanon Security Index™ · Monday, 24 August 2026 · Conflict Day 176 · Truce Day 65 Methodology v3.0 · Coding Manual v3.1 · Compiled in Beirut CIS Security — Because Your Safety Isn't Optional — Since 1990

COMPILER NOTES — NOT FOR PUBLICATION

This is the headline result of the week — first fall out of HIGH — and I've deliberately refused to let it read as good news. The evidence underneath it is one uncorroborated line about a house strike with casualties unstated. Given four straight days of significant upward revision, I'd genuinely be surprised if this holds through the week without a correction. I've said that explicitly in both tiers rather than let the MEDIUM label speak for itself.

Verify against your field intelligence before this publishes, more than on any day this week. My searches for today returned almost nothing — this is the thinnest news day I've had all week, which is itself either a good sign or a sourcing gap, and I genuinely can't tell you which from open sources alone. If your Nabatieh supervisors have anything from last night, it belongs in this edition before it goes out, not as Wednesday's revision.

Both of the war's two heaviest single days — 15 and 16 August — are now fully out of the window. That's real and structurally significant regardless of what today's own thin report turns out to mean. It's worth noting to Carlos as a milestone in its own right, separate from whether the current MEDIUM reading holds.

Confidence at LOW, ~95% reported-share, is now the dominant characteristic of the Index, not an occasional flag. Every governorate's confidence has read LOW or MODERATE-trending-LOW since the 15th load began exiting. This is worth surfacing as a standing pattern in whatever summary reaches Carlos, not just a per-day note.

Trend line, current best version: 94 → 91 → 85 → 79 → 78 → 74 → 72 → 73 → 61 → 55 This is the lowest reading since the Index went computed. Whether it stays there is genuinely unknown, and I've told the reader that directly rather than implying otherwise.