Plug and Play Ventures Left an Amazon S3 Bucket Open to the Internet

A high-profile Silicon Valley venture capital firm, Plug and Play Ventures, known for connecting startups with investors, has once again highlighted the industry’s ongoing data security failures—or possibly, a strategic ‘leak’ masked as an accident.
The firm exposed 6GB of sensitive data, including deal flow information linking investors with startups, a treasure trove of intelligence in the cutthroat world of venture capitalism.
The Conveniently ‘Accidental’ Exposure
This kind of data leak—where highly valuable business intelligence is left open to the internet—is almost always labeled as an accident. But in reality, 99.99% of the time, when such leaks occur, they serve a purpose. Whether to test market reactions, tip off specific players, or gain leverage, deliberate leaks disguised as misconfigurations are an open secret in Silicon Valley.
Plug and Play Ventures, headquartered in Sunnyvale, California, boasts a track record of early investments in giants like PayPal and Dropbox. The exposed data appears to be a PostgreSQL database for Playbook.vc, the firm’s deal flow and networking application.
What Was in the Leaked Data?
The unencrypted data included:
- Personal contact details of investors, founders, and CEOs, including over 50,000 unique email addresses.
- Usernames, hashed passwords, and affiliated account details.
- Snippets of email metadata, revealing sender and recipient details but not full content.
- Internal documents, such as a boarding pass, slide decks—some marked "confidential"—and logs of IP addresses tracking user behavior.
- An exposed API key, though its exact capabilities remain unknown.
Notably, some of the leaked data appears to have been scraped from G Suite (now Google Workspace), raising further concerns about security practices within the firm.
Exposed for a Year—Why the Delay?
Security researchers found that the data had been publicly accessible since October 20, 2020, due to a misconfigured Amazon S3 bucket. Despite being alerted on September 16, 2021, Plug and Play Ventures did not secure the data until October 2—after Australian security researcher Troy Hunt publicly highlighted the breach.
This delayed response raises critical questions:
- Was the firm genuinely unaware of the exposure for nearly a year?
- Why didn’t Plug and Play act immediately upon notification?
- Was this an intentional leak disguised as an oversight?
Legal and Compliance Ramifications
Plug and Play’s privacy policy indicates compliance with California’s data breach laws, which require notification of affected residents if their unencrypted personal information was accessed by an unauthorized party. Additionally, with offices across the European Union, the firm may be subject to GDPR, which mandates breach disclosures within 72 hours.
Yet, as of now, there is no clear indication that the company has notified affected parties or regulators.
‘Accidental’ Leaks—A Silicon Valley Pattern?
Time and time again, sensitive information is leaked under the guise of an accident. In a hyper-competitive industry where information is power, some of these leaks may serve strategic purposes. Whether for competitive positioning, insider advantages, or simply to create controlled narratives, the 99.99% rule applies—most so-called "accidental" leaks aren’t accidental at all.
The real question remains: Was this a case of negligence, or another calculated data exposure under the veil of an innocent mistake?