Please paraphrase this. $3.**$Ethical Implications and Trust Erosion:$**-$ The Cambridge Analytica scandal exposed ethical lapses in the use of personal data for political purposes. The firm's tactics raised questions about the boundaries of acceptable behavior in data$-$driven campaigning and the ethical responsibilities of tech companies and political consultants.$-$ The revelation of widespread data exploitation eroded public trust in social media platforms like Facebook and fueled concerns about the misuse of personal information by powerful entities. Users became more skeptical about sharing their data online and questioned the motives of companies that collect and monetize their information.$-$ The scandal also highlighted the need for stronger regulations and oversight to protect user privacy and ensure ethical standards in the digital age. Governments and regulatory bodies faced pressure to enact reforms that would prevent similar abuses of data and restore public confidence in online platforms$\mathrm{.}4.**$Global Implications and Regulatory Responses:$**-$ The Cambridge Analytica scandal had global ramifications, prompting investigations and inquiries in multiple countries beyond the US and the UK$.$Governments and regulatory authorities around the world scrutinized the practices of tech companies and sought to hold them accountable for their handling of personal data.$-$ The scandal also catalyzed a broader conversation about the power and influence of big tech firms in shaping public discourse and democratic outcomes. It led to calls for greater transparency, accountability, and regulation in the tech industry, with some advocating for measures such as data ownership rights and stricter antitrust enforcement.$-$ In response to the scandal, Facebook and other tech companies implemented policy changes and enhanced privacy protections to regain user trust and address concerns about data security. However, the legacy of the Cambridge Analytica scandal continues to inform discussions about the ethical and regulatory challenges posed by the digital economy.