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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><b><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif"><img src="cid:ii_mf46tfrj0" alt="A blue text on a white background
AI-generated content may be incorrect." width="135" height="41"></span></b><b><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif"></span></b></p>
<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><b><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif"> </span></b></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><b><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif">September 3, 2025</span></b></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif">To: </span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif">UCR Emeriti and Retirees</span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif">From: </span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif">Central HR </span><span style="font-size:11pt;font-family:Arial,sans-serif">Retirement
Center on Behalf of Central HR Benefits Office</span><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif"></span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif">Re: </span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><b><span style="font-size:11pt;font-family:Arial,sans-serif"><span class="gmail_default" style="font-family:verdana,sans-serif;font-size:small"></span>Delta Dental -
Multi-factor Authentication Implementation</span></b><span lang="EN" style="font-size:11pt;font-family:Arial,sans-serif"></span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;border:none;padding:0in;font-size:12pt;font-family:Aptos,sans-serif"><span style="font-size:11pt;font-family:Arial,sans-serif"> </span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;font-size:12pt;font-family:Aptos,sans-serif"><span style="font-size:11pt;font-family:Arial,sans-serif"> </span></p>
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<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:12pt;font-family:Aptos,sans-serif"><span style="font-size:11pt;font-family:Arial,sans-serif">Delta Dental has started implementing multi-factor
authentication (MFA) for all online user accounts. This rollout is expected
to be completed by <b>Thursday, September 4, 2025</b>. Users will receive
email notifications from Delta Dental informing them of this change and will
be prompted to enroll in MFA the next time they log in.</span></p>
<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:12pt;font-family:Aptos,sans-serif"><span style="font-size:11pt;font-family:Arial,sans-serif"> </span></p>
<p class="MsoNormal" style="margin:0in;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:12pt;font-family:Aptos,sans-serif"><b><span style="font-size:11pt;font-family:Arial,sans-serif">What Is Multi-Factor Authentication?</span></b><span style="font-size:11pt;font-family:Arial,sans-serif">
Multi-factor authentication adds an extra layer of security to help protect
user accounts against threats such as phishing and credential theft. These
types of attacks are becoming increasingly common among cybercriminals
seeking unauthorized access to sensitive information. </span></p>
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<p style="margin:0in;font-size:12pt;font-family:"Times New Roman",serif"><span style="font-size:11pt;font-family:Arial,sans-serif">For more details, please refer users to the “Member FAQs” (</span><a href="https://www1.deltadentalins.com/faqs/members.html" style="color:rgb(70,120,134)"><span style="font-size:11pt;font-family:Arial,sans-serif">FAQs</span></a><span style="font-size:11pt;font-family:Arial,sans-serif">) page
on the Delta Dental website.</span><span style="font-size:11pt;font-family:Arial,sans-serif"></span></p>
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