Is Sierra safe with your data?
Sierra
Partial disclosure · high confidence
Partly. Sierra earns a C (60/100) for what it discloses about your data: the policy grants access, portability, deletion, correction, and the right to opt out or object.
#45
of 69 apps ranked
60
score · Enterprise copilot avg 60
+0
vs category average
Sierra's corporate privacy policy covers a full set of data-subject rights, names its international transfer safeguards, and maps its legal bases clearly. It does not say whether site or demo-agent data is used to train Sierra models, gives no retention day-count, and makes no breach-notification commitment. The combination of solid rights handling and these core gaps puts it at the top of the C band. The policy explicitly excludes customer data processed through Sierra's AI agents, which separate customer contracts and DPAs govern.
What Sierra's privacy policy says about your data
Full rights suite
The policy grants access, portability, deletion, correction, and the right to opt out or object. Data portability is described as an electronic copy in a structured, commonly used, and machine readable format.
Named transfer safeguards
International transfers rely on Standard Contractual Clauses, including the EU Standard Contractual Clauses, and Sierra is certified to the EU-US, Swiss-US, and UK Extension to the EU-US Data Privacy Framework.
Silent on model training
The policy mentions generative AI service providers that aggregate and analyze data, but it never states whether personal information from the site or demo agents trains Sierra models, and it offers no training opt-out.
Vague retention and no breach clause
Retention is stated only as for as long as you use our Services or as necessary to fulfill the purposes, with no day-count, and the policy contains no breach notification commitment.
What the policy is silent or vague on
- Doesn't clearly: keeps user inputs out of model training, or makes training opt-in
- Doesn't clearly: names a way to opt out of or into training
- Doesn't clearly: says whether training use differs by plan or tier
- Doesn't clearly: lets the user keep ownership of generated outputs
Sierra privacy rating
Details
- Category
- Enterprise copilot
- Modalities
- text, audio
- Processes biometrics
- Yes
- Policy last updated
- 2026-06-17
- Region scored
- Global / US-default
- Assessed
- 2026-06-20
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Each grade reflects our analysis of what an app states in its public privacy policy and terms as of the assessment date. It measures the transparency of those documents, not the company's actual data practices, security, or compliance. Grades are our opinion, offered for general information. Full disclaimer.