For people asking about some of the risks of digital ID, I've collated some from other sources below, please add to this if there's anything missed:
A centralised digital ID system creates a single, highly attractive target for hackers; a breach could expose complete identities, including passports, driver's licenses, and medical records, leading to identity theft and fraud.
The aggregation of personal data from various sources—such as work status, housing, and benefits—into a single digital identity increases the risk of misuse and creates a comprehensive profile that could be exploited by both state and private companies.
Digital ID systems can enable pervasive surveillance and tracking, potentially stifling free expression and association, especially when combined with technologies like facial recognition and location tracking (which is already happening).
The implementation of such systems may lead to the exclusion of vulnerable groups, including seniors, low-income individuals, and those in rural or connectivity-limited areas, who may struggle to access or use the technology, thereby perpetuating social and economic divides.
There is a significant risk of data being misused or sold by service providers and the lack of robust legal frameworks for data protection can lead to abusive data collection, storage and collation, and violations of privacy rights, including selling the date on via data brokers.
If the digital ID is not executed well (and look at our history of that!), then this could lead to the ID not working, or not updating correctly, or not working in areas of poor signal etc, meaning people would not being able to access services they need when they need them, including important services like health care.
Please add anything I've missed!