shouldiuse.io

VERDICT

Should I use McKinsey & Company?

Global management consulting firm - mckinsey.com

Depends. Buy only if you're a large enterprise with a complex, high-stakes strategy problem and a six-to-seven-figure advisory budget. Startups, SMBs, and anyone wanting hands-on execution should use a boutique firm or do it in-house.

Confidence

Medium. Based on 14 public sources; many review snippets were truncated, limiting verbatim quotes.

Ratings

  • Value for money
  • Ease of useService engagement; no usability evidence
  • Feature depth
  • Support qualityNo client-support evidence found
  • Security posture

Pricing

Project-based consulting

Custom; ~$500K cited per market-entry study

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierNo
Outcome-based dealsCustom, tied to results

Best for

  • Fortune-500 strategy overhauls
  • Boards needing third-party validation
  • Multi-market entry decisions
  • Orgs with $1M+ advisory budgets

Not for

  • Startups and SMBs — absurd overkill
  • Anyone who can't burn $500K+ per study
  • Buyers wanting implementation, not recommendations
  • Projects sharing sensitive data without security diligence

Gotchas - check before you buy

high

No published pricing; engagements custom-quoted, typically six figures.

high

Handing over confidential data carries risk: exposed APIs leaked ~46M Lilli chats.

medium

Outcome-based pricing invites scoping disputes over what counts as an outcome.

low

No public security page found at only a PDF overview exists.

Pros and cons

Pros

  • Global reach with deep industry research bench
  • Publishes vast free research anyone can use
  • Shifting toward outcome-based pricing tied to results
  • Productized pricing solutions via Periscope

Cons

  • Cited ~$500K for one market-entry study
  • Its own AI platform breached; 46M chats exposed
  • Public sentiment frequently questions fees versus value
  • Rate-card billing rewards time over outcomes

Sources & method

Analyzed 9/20/2026 - 13 sources - Breach reported: an autonomous agent exploited exposed APIs on McKinsey's Lilli platform in ~2 hours; ~46M chats and sensitive data exposed.

official x1review x4security x4news x4
  • Lilli AI platform breached (2026), A security firm's autonomous AI agent exploited SQL injection via exposed APIs in about 2 hours, reportedly exposing ~46M chats and sensitive data.
  • Exposed APIs were the root cause, Analysis attributes the breach to exposed APIs rather than the AI agent itself.

Key stats

  • Value for money: 2/5

    Rating

  • Not disclosed

    Starting price

  • 13

    Sources

  • Analyzed

  • Value for money: 2/5. Six-figure fees; critics openly question ROI
  • Ease of use. Service engagement; no usability evidence
  • Feature depth: 5/5. Deepest research bench in strategy consulting
  • Support quality. No client-support evidence found
  • Security posture: 1/5. Lilli breach exposed 46M chats via APIs
  • 1926 Founded Global strategy consultancy
  • ~$500K Entry cost Cited market-entry study
  • 12 G2 reviews Thin coverage for its size
  • 700+ Employee reviews On AmbitionBox

Pricing

Project-based consulting

Not disclosed

  • Strategy and market-entry studies
  • Rate-card billing per 2024 GSA cards
  • Senior-led, team-delivered

Outcome-based deals

Not disclosed

  • Newer model shifting fees to outcomes

Security

Breach reported: an autonomous agent exploited exposed APIs on McKinsey's Lilli platform in ~2 hours; ~46M chats and sensitive data exposed.

  • Lilli AI platform breached (2026)A security firm's autonomous AI agent exploited SQL injection via exposed APIs in about 2 hours, reportedly exposing ~46M chats and sensitive data.⁵
  • Exposed APIs were the root causeAnalysis attributes the breach to exposed APIs rather than the AI agent itself.⁷

What users say

commentary and employee reviews skew critical, with recurring skepticism that fees match delivered value; G2 coverage is unusually thin.

“Nearly all McKinsey cons”
Reddit, r/LateStageCapitalism

Alternatives

Compare McKinsey & Company with each alternative.

Full analysis

Based on 14 public sources; many review snippets were truncated, limiting verbatim quotes.

Priciest strategy advice on earth. Fits Fortune-500 crises; overkill for most. Its own AI platform was breached in 2 hours.

Methodology

Based on 14 public sources; many review snippets were truncated, limiting verbatim quotes.

Sources

  1. McKinsey Reviews, Pricing & Features — G2g2.com
    review
  2. McKinsey & Company Reviews — Glassdoorglassdoor.com
    review
  3. Anyone had to deal with McKinsey & Company — Redditreddit.com
    review
  4. McKinsey employee reviews — AmbitionBoxambitionbox.com
    review
  5. How an AI Agent Hacked McKinsey's AI Platform — Outpost24outpost24.com
    security
  6. McKinsey AI Platform Hack: 46M chats exposed — NHIMGnhimg.org
    security
  7. An AI Agent Didn't Hack McKinsey. Its Exposed APIs Did. — Salt Securitysalt.security
    security
  8. Autonomous Agent Hacked McKinsey's AI in 2 Hours — BankInfoSecuritybankinfosecurity.com
    security
  9. Management consulting fees: how McKinsey prices projects — Slideworksslideworks.io
    news
  10. McKinsey charges $500,000 for a market-entry study — Facebookfacebook.com
    news
  11. AI is reshaping how McKinsey makes money — LinkedInlinkedin.com
    news
  12. McKinsey & Company — Wikipediaen.wikipedia.org
    news
  13. Security page — mckinsey.commckinsey.com
    official

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