The greatest concern when implementing data flow across borders.

B.

When implementing data flow across borders, the greatest concern is typically related to complying with national privacy laws.

National privacy laws vary greatly from country to country, and organizations must ensure that they are following the privacy laws of each country they are operating in or transferring data to. Failure to do so can result in legal consequences, financial penalties, and damage to the organization's reputation. Additionally, personal data is often considered a valuable asset, and the misuse or mishandling of this data can lead to negative consequences for individuals, organizations, and even nations.

While software piracy laws and equipment incompatibilities can also be concerns when implementing data flow across borders, they are typically less significant than privacy laws. Political unrest can also impact data flow, but this is typically a temporary concern that can be addressed by temporarily suspending data transfers or finding alternative routes for data transmission. In contrast, privacy laws must be continuously complied with throughout the entire data flow process.

In summary, complying with national privacy laws is the greatest concern when implementing data flow across borders due to the potential legal, financial, and reputational consequences of failing to do so.